Rest Assured - post - x-www-form-urlencoded - Cannot invoke method trim() on null object - rest

I am getting "Cannot invoke method trim() on null object" on this POST API.
URL : http://10.2.107.52:8080/auth/realms/Precisely/protocol/openid-connect/token
After digging more, I understood that this issue is coming from Rest assured internal library. Complete stack trace is
java.lang.NullPointerException: Cannot invoke method trim() on null object
at org.codehaus.groovy.runtime.NullObject.invokeMethod(NullObject.java:91)
at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.call(PogoMetaClassSite.java:43)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47)
at org.codehaus.groovy.runtime.callsite.NullCallSite.call(NullCallSite.java:34)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47)
at java_lang_String$trim.call(Unknown Source)
at io.restassured.internal.support.PathSupport.mergeAndRemoveDoubleSlash(PathSupport.groovy:28)
at io.restassured.internal.support.PathSupport$mergeAndRemoveDoubleSlash$0.callStatic(Unknown Source)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallStatic(CallSiteArray.java:55)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callStatic(AbstractCallSite.java:196)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callStatic(AbstractCallSite.java:216)
at io.restassured.internal.RequestSpecificationImpl.getTargetPath(RequestSpecificationImpl.groovy:1362)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:101)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:323)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1217)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1041)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:821)
at io.restassured.internal.RequestSpecificationImpl.invokeMethod(RequestSpecificationImpl.groovy)
at org.codehaus.groovy.runtime.callsite.PogoInterceptableSite.call(PogoInterceptableSite.java:45)
at org.codehaus.groovy.runtime.callsite.PogoInterceptableSite.callCurrent(PogoInterceptableSite.java:55)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:51)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:156)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:168)
at io.restassured.internal.RequestSpecificationImpl.getPathParamPlaceholders(RequestSpecificationImpl.groovy:1969)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:101)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:323)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1217)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1041)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:821)
at io.restassured.internal.RequestSpecificationImpl.invokeMethod(RequestSpecificationImpl.groovy)
at org.codehaus.groovy.runtime.callsite.PogoInterceptableSite.call(PogoInterceptableSite.java:45)
at org.codehaus.groovy.runtime.callsite.PogoInterceptableSite.callCurrent(PogoInterceptableSite.java:55)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:51)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:156)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:160)
at io.restassured.internal.RequestSpecificationImpl.getRedundantNamedPathParams(RequestSpecificationImpl.groovy:2238)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:101)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:323)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1217)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1041)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:821)
at io.restassured.internal.RequestSpecificationImpl.invokeMethod(RequestSpecificationImpl.groovy)
at org.codehaus.groovy.runtime.callsite.PogoInterceptableSite.call(PogoInterceptableSite.java:45)
at org.codehaus.groovy.runtime.callsite.PogoInterceptableSite.callCurrent(PogoInterceptableSite.java:55)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:51)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:156)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:160)
at io.restassured.internal.RequestSpecificationImpl.assertCorrectNumberOfPathParams(RequestSpecificationImpl.groovy:1207)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:101)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:323)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1217)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1041)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:821)
at io.restassured.internal.RequestSpecificationImpl.invokeMethod(RequestSpecificationImpl.groovy)
at org.codehaus.groovy.runtime.callsite.PogoInterceptableSite.call(PogoInterceptableSite.java:45)
at org.codehaus.groovy.runtime.callsite.PogoInterceptableSite.callCurrent(PogoInterceptableSite.java:55)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:51)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:156)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:160)
.header("Content-Type", "application/x-www-form-urlencoded")
.formParam("grant_type", "password")
.formParam("client_id", "OIDC-DIS-Agent")
.formParam("scope", "openid")
.formParam("username", base.getAuthUserName())
.formParam("password", base.getAuthPassword())
.when()
.post(base.getAuthURL());
Also this is related to `Nullpointer within io.restassured.internal.support.PathSupport` when using given.post() but I am not getting the solution here

Related

spark-shell not working on installing apache spark. Error: system cannot find the path specified

I installed Apache Spark, have java and python installed as well. Set up the environment variables as per this article: https://phoenixnap.com/kb/install-spark-on-windows-10
I have also installed winutils.exe.
Initially I was getting an error like :
missing Python executable
defaulting to 'C:\spark\bin..' for SPARK_HOME environment variable.
Please install Python or specify the correct Python executable in PYSPARK_DRIVER_PYTHO
N or PYSPARK_PYTHON environment variable to detect SPARK_HOME safely. To fix this i added a environment variable
Name: PYSPARK_DRIVER_PYTHON
value: C:\Program Files\Python310
Now, on the terminal, C:\spark\bin>spark-shell gives the following output:
The system cannot find the path specified.
The system cannot find the path specified.
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.apache.spark.unsafe.Platform (file:/C:/spark/jars/spark-unsafe_2.12-3.2.1.jar) to constructor java.nio.DirectByteBuffer(long,int)
WARNING: Please consider reporting this to the maintainers of org.apache.spark.unsafe.Platform
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Using Spark's default log4j profile: org/apache/spark/log4j-defaults.properties
Setting default log level to "WARN".
To adjust logging level use sc.setLogLevel(newLevel). For SparkR, use setLogLevel(newLevel).
22/06/03 14:18:15 WARN NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
22/06/03 14:18:17 ERROR SparkContext: Error initializing SparkContext.
java.lang.reflect.InvocationTargetException
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
at org.apache.spark.executor.Executor.addReplClassLoaderIfNeeded(Executor.scala:909)
at org.apache.spark.executor.Executor.<init>(Executor.scala:160)
at org.apache.spark.scheduler.local.LocalEndpoint.<init>(LocalSchedulerBackend.scala:64)
at org.apache.spark.scheduler.local.LocalSchedulerBackend.start(LocalSchedulerBackend.scala:132)
at org.apache.spark.scheduler.TaskSchedulerImpl.start(TaskSchedulerImpl.scala:220)
at org.apache.spark.SparkContext.<init>(SparkContext.scala:581)
at org.apache.spark.SparkContext$.getOrCreate(SparkContext.scala:2690)
at org.apache.spark.sql.SparkSession$Builder.$anonfun$getOrCreate$2(SparkSession.scala:949)
at scala.Option.getOrElse(Option.scala:189)
at org.apache.spark.sql.SparkSession$Builder.getOrCreate(SparkSession.scala:943)
at org.apache.spark.repl.Main$.createSparkSession(Main.scala:106)
at $line3.$read$$iw$$iw.<init>(<console>:15)
at $line3.$read$$iw.<init>(<console>:42)
at $line3.$read.<init>(<console>:44)
at $line3.$read$.<init>(<console>:48)
at $line3.$read$.<clinit>(<console>)
at $line3.$eval$.$print$lzycompute(<console>:7)
at $line3.$eval$.$print(<console>:6)
at $line3.$eval.$print(<console>)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at scala.tools.nsc.interpreter.IMain$ReadEvalPrint.call(IMain.scala:747)
at scala.tools.nsc.interpreter.IMain$Request.loadAndRun(IMain.scala:1020)
at scala.tools.nsc.interpreter.IMain.$anonfun$interpret$1(IMain.scala:568)
at scala.reflect.internal.util.ScalaClassLoader.asContext(ScalaClassLoader.scala:36)
at scala.reflect.internal.util.ScalaClassLoader.asContext$(ScalaClassLoader.scala:116)
at scala.reflect.internal.util.AbstractFileClassLoader.asContext(AbstractFileClassLoader.scala:41)
at scala.tools.nsc.interpreter.IMain.loadAndRunReq$1(IMain.scala:567)
at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:594)
at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:564)
at scala.tools.nsc.interpreter.IMain.$anonfun$quietRun$1(IMain.scala:216)
at scala.tools.nsc.interpreter.IMain.beQuietDuring(IMain.scala:206)
at scala.tools.nsc.interpreter.IMain.quietRun(IMain.scala:216)
at org.apache.spark.repl.SparkILoop.$anonfun$initializeSpark$2(SparkILoop.scala:83)
at scala.collection.immutable.List.foreach(List.scala:431)
at org.apache.spark.repl.SparkILoop.$anonfun$initializeSpark$1(SparkILoop.scala:83)
at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
at scala.tools.nsc.interpreter.ILoop.savingReplayStack(ILoop.scala:97)
at org.apache.spark.repl.SparkILoop.initializeSpark(SparkILoop.scala:83)
at org.apache.spark.repl.SparkILoop.$anonfun$process$4(SparkILoop.scala:165)
at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
at scala.tools.nsc.interpreter.ILoop.$anonfun$mumly$1(ILoop.scala:166)
at scala.tools.nsc.interpreter.IMain.beQuietDuring(IMain.scala:206)
at scala.tools.nsc.interpreter.ILoop.mumly(ILoop.scala:163)
at org.apache.spark.repl.SparkILoop.loopPostInit$1(SparkILoop.scala:153)
at org.apache.spark.repl.SparkILoop.$anonfun$process$10(SparkILoop.scala:221)
at org.apache.spark.repl.SparkILoop.withSuppressedSettings$1(SparkILoop.scala:189)
at org.apache.spark.repl.SparkILoop.startup$1(SparkILoop.scala:201)
at org.apache.spark.repl.SparkILoop.process(SparkILoop.scala:236)
at org.apache.spark.repl.Main$.doMain(Main.scala:78)
at org.apache.spark.repl.Main$.main(Main.scala:58)
at org.apache.spark.repl.Main.main(Main.scala)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.apache.spark.deploy.JavaMainApplication.start(SparkApplication.scala:52)
at org.apache.spark.deploy.SparkSubmit.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:955)
at org.apache.spark.deploy.SparkSubmit.doRunMain$1(SparkSubmit.scala:180)
at org.apache.spark.deploy.SparkSubmit.submit(SparkSubmit.scala:203)
at org.apache.spark.deploy.SparkSubmit.doSubmit(SparkSubmit.scala:90)
at org.apache.spark.deploy.SparkSubmit$$anon$2.doSubmit(SparkSubmit.scala:1043)
at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:1052)
at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
Caused by: java.net.URISyntaxException: Illegal character in path at index 32: spark://DESKTOP-E76IK3L:52769/C:\classes
at java.base/java.net.URI$Parser.fail(URI.java:2913)
at java.base/java.net.URI$Parser.checkChars(URI.java:3084)
at java.base/java.net.URI$Parser.parseHierarchical(URI.java:3166)
at java.base/java.net.URI$Parser.parse(URI.java:3114)
at java.base/java.net.URI.<init>(URI.java:600)
at org.apache.spark.repl.ExecutorClassLoader.<init>(ExecutorClassLoader.scala:57)
... 70 more
22/06/03 14:18:17 ERROR Utils: Uncaught exception in thread main
java.lang.NullPointerException
at org.apache.spark.scheduler.local.LocalSchedulerBackend.org$apache$spark$scheduler$local$LocalSchedulerBackend$$stop(LocalSchedulerBackend.scala:173)
at org.apache.spark.scheduler.local.LocalSchedulerBackend.stop(LocalSchedulerBackend.scala:144)
at org.apache.spark.scheduler.TaskSchedulerImpl.stop(TaskSchedulerImpl.scala:927)
at org.apache.spark.scheduler.DAGScheduler.stop(DAGScheduler.scala:2567)
at org.apache.spark.SparkContext.$anonfun$stop$12(SparkContext.scala:2086)
at org.apache.spark.util.Utils$.tryLogNonFatalError(Utils.scala:1442)
at org.apache.spark.SparkContext.stop(SparkContext.scala:2086)
at org.apache.spark.SparkContext.<init>(SparkContext.scala:677)
at org.apache.spark.SparkContext$.getOrCreate(SparkContext.scala:2690)
at org.apache.spark.sql.SparkSession$Builder.$anonfun$getOrCreate$2(SparkSession.scala:949)
at scala.Option.getOrElse(Option.scala:189)
at org.apache.spark.sql.SparkSession$Builder.getOrCreate(SparkSession.scala:943)
at org.apache.spark.repl.Main$.createSparkSession(Main.scala:106)
at $line3.$read$$iw$$iw.<init>(<console>:15)
at $line3.$read$$iw.<init>(<console>:42)
at $line3.$read.<init>(<console>:44)
at $line3.$read$.<init>(<console>:48)
at $line3.$read$.<clinit>(<console>)
at $line3.$eval$.$print$lzycompute(<console>:7)
at $line3.$eval$.$print(<console>:6)
at $line3.$eval.$print(<console>)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at scala.tools.nsc.interpreter.IMain$ReadEvalPrint.call(IMain.scala:747)
at scala.tools.nsc.interpreter.IMain$Request.loadAndRun(IMain.scala:1020)
at scala.tools.nsc.interpreter.IMain.$anonfun$interpret$1(IMain.scala:568)
at scala.reflect.internal.util.ScalaClassLoader.asContext(ScalaClassLoader.scala:36)
at scala.reflect.internal.util.ScalaClassLoader.asContext$(ScalaClassLoader.scala:116)
at scala.reflect.internal.util.AbstractFileClassLoader.asContext(AbstractFileClassLoader.scala:41)
at scala.tools.nsc.interpreter.IMain.loadAndRunReq$1(IMain.scala:567)
at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:594)
at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:564)
at scala.tools.nsc.interpreter.IMain.$anonfun$quietRun$1(IMain.scala:216)
at scala.tools.nsc.interpreter.IMain.beQuietDuring(IMain.scala:206)
at scala.tools.nsc.interpreter.IMain.quietRun(IMain.scala:216)
at org.apache.spark.repl.SparkILoop.$anonfun$initializeSpark$2(SparkILoop.scala:83)
at scala.collection.immutable.List.foreach(List.scala:431)
at org.apache.spark.repl.SparkILoop.$anonfun$initializeSpark$1(SparkILoop.scala:83)
at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
at scala.tools.nsc.interpreter.ILoop.savingReplayStack(ILoop.scala:97)
at org.apache.spark.repl.SparkILoop.initializeSpark(SparkILoop.scala:83)
at org.apache.spark.repl.SparkILoop.$anonfun$process$4(SparkILoop.scala:165)
at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
at scala.tools.nsc.interpreter.ILoop.$anonfun$mumly$1(ILoop.scala:166)
at scala.tools.nsc.interpreter.IMain.beQuietDuring(IMain.scala:206)
at scala.tools.nsc.interpreter.ILoop.mumly(ILoop.scala:163)
at org.apache.spark.repl.SparkILoop.loopPostInit$1(SparkILoop.scala:153)
at org.apache.spark.repl.SparkILoop.$anonfun$process$10(SparkILoop.scala:221)
at org.apache.spark.repl.SparkILoop.withSuppressedSettings$1(SparkILoop.scala:189)
at org.apache.spark.repl.SparkILoop.startup$1(SparkILoop.scala:201)
at org.apache.spark.repl.SparkILoop.process(SparkILoop.scala:236)
at org.apache.spark.repl.Main$.doMain(Main.scala:78)
at org.apache.spark.repl.Main$.main(Main.scala:58)
at org.apache.spark.repl.Main.main(Main.scala)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.apache.spark.deploy.JavaMainApplication.start(SparkApplication.scala:52)
at org.apache.spark.deploy.SparkSubmit.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:955)
at org.apache.spark.deploy.SparkSubmit.doRunMain$1(SparkSubmit.scala:180)
at org.apache.spark.deploy.SparkSubmit.submit(SparkSubmit.scala:203)
at org.apache.spark.deploy.SparkSubmit.doSubmit(SparkSubmit.scala:90)
at org.apache.spark.deploy.SparkSubmit$$anon$2.doSubmit(SparkSubmit.scala:1043)
at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:1052)
at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
22/06/03 14:18:17 WARN MetricsSystem: Stopping a MetricsSystem that is not running
22/06/03 14:18:17 ERROR Main: Failed to initialize Spark session.
java.lang.reflect.InvocationTargetException
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
at org.apache.spark.executor.Executor.addReplClassLoaderIfNeeded(Executor.scala:909)
at org.apache.spark.executor.Executor.<init>(Executor.scala:160)
at org.apache.spark.scheduler.local.LocalEndpoint.<init>(LocalSchedulerBackend.scala:64)
at org.apache.spark.scheduler.local.LocalSchedulerBackend.start(LocalSchedulerBackend.scala:132)
at org.apache.spark.scheduler.TaskSchedulerImpl.start(TaskSchedulerImpl.scala:220)
at org.apache.spark.SparkContext.<init>(SparkContext.scala:581)
at org.apache.spark.SparkContext$.getOrCreate(SparkContext.scala:2690)
at org.apache.spark.sql.SparkSession$Builder.$anonfun$getOrCreate$2(SparkSession.scala:949)
at scala.Option.getOrElse(Option.scala:189)
at org.apache.spark.sql.SparkSession$Builder.getOrCreate(SparkSession.scala:943)
at org.apache.spark.repl.Main$.createSparkSession(Main.scala:106)
at $line3.$read$$iw$$iw.<init>(<console>:15)
at $line3.$read$$iw.<init>(<console>:42)
at $line3.$read.<init>(<console>:44)
at $line3.$read$.<init>(<console>:48)
at $line3.$read$.<clinit>(<console>)
at $line3.$eval$.$print$lzycompute(<console>:7)
at $line3.$eval$.$print(<console>:6)
at $line3.$eval.$print(<console>)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at scala.tools.nsc.interpreter.IMain$ReadEvalPrint.call(IMain.scala:747)
at scala.tools.nsc.interpreter.IMain$Request.loadAndRun(IMain.scala:1020)
at scala.tools.nsc.interpreter.IMain.$anonfun$interpret$1(IMain.scala:568)
at scala.reflect.internal.util.ScalaClassLoader.asContext(ScalaClassLoader.scala:36)
at scala.reflect.internal.util.ScalaClassLoader.asContext$(ScalaClassLoader.scala:116)
at scala.reflect.internal.util.AbstractFileClassLoader.asContext(AbstractFileClassLoader.scala:41)
at scala.tools.nsc.interpreter.IMain.loadAndRunReq$1(IMain.scala:567)
at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:594)
at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:564)
at scala.tools.nsc.interpreter.IMain.$anonfun$quietRun$1(IMain.scala:216)
at scala.tools.nsc.interpreter.IMain.beQuietDuring(IMain.scala:206)
at scala.tools.nsc.interpreter.IMain.quietRun(IMain.scala:216)
at org.apache.spark.repl.SparkILoop.$anonfun$initializeSpark$2(SparkILoop.scala:83)
at scala.collection.immutable.List.foreach(List.scala:431)
at org.apache.spark.repl.SparkILoop.$anonfun$initializeSpark$1(SparkILoop.scala:83)
at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
at scala.tools.nsc.interpreter.ILoop.savingReplayStack(ILoop.scala:97)
at org.apache.spark.repl.SparkILoop.initializeSpark(SparkILoop.scala:83)
at org.apache.spark.repl.SparkILoop.$anonfun$process$4(SparkILoop.scala:165)
at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
at scala.tools.nsc.interpreter.ILoop.$anonfun$mumly$1(ILoop.scala:166)
at scala.tools.nsc.interpreter.IMain.beQuietDuring(IMain.scala:206)
at scala.tools.nsc.interpreter.ILoop.mumly(ILoop.scala:163)
at org.apache.spark.repl.SparkILoop.loopPostInit$1(SparkILoop.scala:153)
at org.apache.spark.repl.SparkILoop.$anonfun$process$10(SparkILoop.scala:221)
at org.apache.spark.repl.SparkILoop.withSuppressedSettings$1(SparkILoop.scala:189)
at org.apache.spark.repl.SparkILoop.startup$1(SparkILoop.scala:201)
at org.apache.spark.repl.SparkILoop.process(SparkILoop.scala:236)
at org.apache.spark.repl.Main$.doMain(Main.scala:78)
at org.apache.spark.repl.Main$.main(Main.scala:58)
at org.apache.spark.repl.Main.main(Main.scala)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.apache.spark.deploy.JavaMainApplication.start(SparkApplication.scala:52)
at org.apache.spark.deploy.SparkSubmit.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:955)
at org.apache.spark.deploy.SparkSubmit.doRunMain$1(SparkSubmit.scala:180)
at org.apache.spark.deploy.SparkSubmit.submit(SparkSubmit.scala:203)
at org.apache.spark.deploy.SparkSubmit.doSubmit(SparkSubmit.scala:90)
at org.apache.spark.deploy.SparkSubmit$$anon$2.doSubmit(SparkSubmit.scala:1043)
at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:1052)
at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
Caused by: java.net.URISyntaxException: Illegal character in path at index 32: spark://DESKTOP-E76IK3L:52769/C:\classes
at java.base/java.net.URI$Parser.fail(URI.java:2913)
at java.base/java.net.URI$Parser.checkChars(URI.java:3084)
at java.base/java.net.URI$Parser.parseHierarchical(URI.java:3166)
at java.base/java.net.URI$Parser.parse(URI.java:3114)
at java.base/java.net.URI.<init>(URI.java:600)
at org.apache.spark.repl.ExecutorClassLoader.<init>(ExecutorClassLoader.scala:57)
... 70 more
22/06/03 14:18:17 ERROR Utils: Uncaught exception in thread shutdown-hook-0
java.lang.ExceptionInInitializerError
at org.apache.spark.executor.Executor.stop(Executor.scala:333)
at org.apache.spark.executor.Executor.$anonfun$stopHookReference$1(Executor.scala:76)
at org.apache.spark.util.SparkShutdownHook.run(ShutdownHookManager.scala:214)
at org.apache.spark.util.SparkShutdownHookManager.$anonfun$runAll$2(ShutdownHookManager.scala:188)
at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
at org.apache.spark.util.Utils$.logUncaughtExceptions(Utils.scala:2019)
at org.apache.spark.util.SparkShutdownHookManager.$anonfun$runAll$1(ShutdownHookManager.scala:188)
at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
at scala.util.Try$.apply(Try.scala:213)
at org.apache.spark.util.SparkShutdownHookManager.runAll(ShutdownHookManager.scala:188)
at org.apache.spark.util.SparkShutdownHookManager$$anon$2.run(ShutdownHookManager.scala:178)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.lang.NullPointerException
at org.apache.spark.shuffle.ShuffleBlockPusher$.<init>(ShuffleBlockPusher.scala:465)
at org.apache.spark.shuffle.ShuffleBlockPusher$.<clinit>(ShuffleBlockPusher.scala)
... 16 more
22/06/03 14:18:17 WARN ShutdownHookManager: ShutdownHook '' failed, java.util.concurrent.ExecutionException: java.lang.ExceptionInInitializerError
java.util.concurrent.ExecutionException: java.lang.ExceptionInInitializerError
at java.base/java.util.concurrent.FutureTask.report(FutureTask.java:122)
at java.base/java.util.concurrent.FutureTask.get(FutureTask.java:205)
at org.apache.hadoop.util.ShutdownHookManager.executeShutdown(ShutdownHookManager.java:124)
at org.apache.hadoop.util.ShutdownHookManager$1.run(ShutdownHookManager.java:95)
Caused by: java.lang.ExceptionInInitializerError
at org.apache.spark.executor.Executor.stop(Executor.scala:333)
at org.apache.spark.executor.Executor.$anonfun$stopHookReference$1(Executor.scala:76)
at org.apache.spark.util.SparkShutdownHook.run(ShutdownHookManager.scala:214)
at org.apache.spark.util.SparkShutdownHookManager.$anonfun$runAll$2(ShutdownHookManager.scala:188)
at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
at org.apache.spark.util.Utils$.logUncaughtExceptions(Utils.scala:2019)
at org.apache.spark.util.SparkShutdownHookManager.$anonfun$runAll$1(ShutdownHookManager.scala:188)
at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
at scala.util.Try$.apply(Try.scala:213)
at org.apache.spark.util.SparkShutdownHookManager.runAll(ShutdownHookManager.scala:188)
at org.apache.spark.util.SparkShutdownHookManager$$anon$2.run(ShutdownHookManager.scala:178)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.lang.NullPointerException
at org.apache.spark.shuffle.ShuffleBlockPusher$.<init>(ShuffleBlockPusher.scala:465)
at org.apache.spark.shuffle.ShuffleBlockPusher$.<clinit>(ShuffleBlockPusher.scala)
... 16 more
How do I fix this?
I think there is issue with your computer name , that contains string and spark libs/scripts not able to understand the same.
spark://DESKTOP-E76IK3L:52769/
can you change your computer/Laptop name to any string(no number, colons in between)
something like : MyDesktop
and try running spark-shell

Getting error Caused by: java.lang.IllegalStateException: Cannot open an already opened ItemReader, call close first

2021-07-15 17:40:41.004 ERROR 76282 --- [ restartedMain] o.s.batch.core.step.AbstractStep : Encountered an error executing step randoms in job ETL-Loads
org.springframework.batch.item.ItemStreamException: Failed to initialize the reader
at org.springframework.batch.item.support.AbstractItemCountingItemStreamItemReader.open(AbstractItemCountingItemStreamItemReader.java:153) ~[spring-batch-infrastructure-4.2.1.RELEASE.jar:4.2.1.RELEASE]
at org.springframework.batch.item.support.CompositeItemStream.open(CompositeItemStream.java:103) ~[spring-batch-infrastructure-4.2.1.RELEASE.jar:4.2.1.RELEASE]
at org.springframework.batch.core.step.tasklet.TaskletStep.open(TaskletStep.java:311) ~[spring-batch-core-4.2.1.RELEASE.jar:4.2.1.RELEASE]
at org.springframework.batch.core.step.AbstractStep.execute(AbstractStep.java:205) ~[spring-batch-core-4.2.1.RELEASE.jar:4.2.1.RELEASE]
at org.springframework.batch.core.job.SimpleStepHandler.handleStep(SimpleStepHandler.java:148) ~[spring-batch-core-4.2.1.RELEASE.jar:4.2.1.RELEASE]
at org.springframework.batch.core.job.AbstractJob.handleStep(AbstractJob.java:410) ~[spring-batch-core-4.2.1.RELEASE.jar:4.2.1.RELEASE]
at org.springframework.batch.core.job.SimpleJob.doExecute(SimpleJob.java:136) ~[spring-batch-core-4.2.1.RELEASE.jar:4.2.1.RELEASE]
at org.springframework.batch.core.job.AbstractJob.execute(AbstractJob.java:319) ~[spring-batch-core-4.2.1.RELEASE.jar:4.2.1.RELEASE]
at org.springframework.batch.core.launch.support.SimpleJobLauncher$1.run(SimpleJobLauncher.java:147) ~[spring-batch-core-4.2.1.RELEASE.jar:4.2.1.RELEASE]
at org.springframework.core.task.SyncTaskExecutor.execute(SyncTaskExecutor.java:50) ~[spring-core-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.batch.core.launch.support.SimpleJobLauncher.run(SimpleJobLauncher.java:140) ~[spring-batch-core-4.2.1.RELEASE.jar:4.2.1.RELEASE]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:566) ~[na:na]
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:344) ~[spring-aop-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:198) ~[spring-aop-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) ~[spring-aop-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.batch.core.configuration.annotation.SimpleBatchConfiguration$PassthruAdvice.invoke(SimpleBatchConfiguration.java:127) ~[spring-batch-core-4.2.1.RELEASE.jar:4.2.1.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212) ~[spring-aop-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at com.sun.proxy.$Proxy147.run(Unknown Source) ~[na:na]
at org.springframework.boot.autoconfigure.batch.JobLauncherCommandLineRunner.execute(JobLauncherCommandLineRunner.java:192) ~[spring-boot-autoconfigure-2.2.3.RELEASE.jar:2.2.3.RELEASE]
at org.springframework.boot.autoconfigure.batch.JobLauncherCommandLineRunner.executeLocalJobs(JobLauncherCommandLineRunner.java:166) ~[spring-boot-autoconfigure-2.2.3.RELEASE.jar:2.2.3.RELEASE]
at org.springframework.boot.autoconfigure.batch.JobLauncherCommandLineRunner.launchJobFromProperties(JobLauncherCommandLineRunner.java:153) ~[spring-boot-autoconfigure-2.2.3.RELEASE.jar:2.2.3.RELEASE]
at org.springframework.boot.autoconfigure.batch.JobLauncherCommandLineRunner.run(JobLauncherCommandLineRunner.java:148) ~[spring-boot-autoconfigure-2.2.3.RELEASE.jar:2.2.3.RELEASE]
at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:784) ~[spring-boot-2.2.3.RELEASE.jar:2.2.3.RELEASE]
at org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:768) ~[spring-boot-2.2.3.RELEASE.jar:2.2.3.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:322) ~[spring-boot-2.2.3.RELEASE.jar:2.2.3.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226) ~[spring-boot-2.2.3.RELEASE.jar:2.2.3.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) ~[spring-boot-2.2.3.RELEASE.jar:2.2.3.RELEASE]
at com.athenahealth.pms.Application.main(Application.java:24) ~[main/:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:566) ~[na:na]
at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) ~[spring-boot-devtools-2.2.3.RELEASE.jar:2.2.3.RELEASE]
Caused by: java.lang.IllegalStateException: Cannot open an already opened ItemReader, call close first
at org.springframework.util.Assert.state(Assert.java:73) ~[spring-core-5.2.3.RELEASE.jar:5.2.3.RELEASE]
at org.springframework.batch.item.database.AbstractPagingItemReader.doOpen(AbstractPagingItemReader.java:135) ~[spring-batch-infrastructure-4.2.1.RELEASE.jar:4.2.1.RELEASE]
at org.springframework.batch.item.support.AbstractItemCountingItemStreamItemReader.open(AbstractItemCountingItemStreamItemReader.java:150) ~[spring-batch-infrastructure-4.2.1.RELEASE.jar:4.2.1.RELEASE]
... 36 common frames omitted
Caused by: java.lang.IllegalStateException: Cannot open an already opened ItemReader, call close first
This comes cause spring-batch will itself initiate batch operation on first load.So its required to add spring.batch.job.enabled=false in properties file.

Why can't SpringMVC configure a custom type converter with the package name "converter"

When I use the package name converter, an error occurs
My configuration:
My configuration:
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'conversionService' defined in class path resource [spring-mvc.xml]: Cannot create inner bean 'converter.MyDateConverter#67d88886' of type [converter.MyDateConverter] while setting bean property 'converters' with key [0]; nested exception is org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [converter.MyDateConverter] for bean with name 'converter.MyDateConverter#67d88886' defined in class path resource [spring-mvc.xml]; nested exception is java.lang.ClassNotFoundException: converter.MyDateConverter
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:389)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:127)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveManagedList(BeanDefinitionValueResolver.java:428)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:173)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1697)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1442)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:593)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:324)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:226)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:207)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:856)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:551)
at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:702)
at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:668)
at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:716)
at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:591)
at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:530)
at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:170)
at javax.servlet.GenericServlet.init(GenericServlet.java:158)
at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1134)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1089)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:983)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4864)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5173)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:717)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:690)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:705)
at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1727)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:288)
at java.management/com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:809)
at java.management/com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:456)
at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:405)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:288)
at java.management/com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:809)
at java.management/com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
at java.management/com.sun.jmx.remote.security.MBeanServerAccessController.invoke(MBeanServerAccessController.java:468)
at java.management.rmi/javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1466)
at java.management.rmi/javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1307)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at java.management.rmi/javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1406)
at java.management.rmi/javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:827)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at java.rmi/sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:359)
at java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:200)
at java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:197)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at java.rmi/sun.rmi.transport.Transport.serviceCall(Transport.java:196)
at java.rmi/sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:562)
at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:796)
at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:677)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:676)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [converter.MyDateConverter] for bean with name 'converter.MyDateConverter#67d88886' defined in class path resource [spring-mvc.xml]; nested exception is java.lang.ClassNotFoundException: converter.MyDateConverter
at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1486)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:488)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:374)
... 69 more
Caused by: java.lang.ClassNotFoundException: converter.MyDateConverter
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1365)
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1188)
at java.base/java.lang.Class.forName0(Native Method)
at java.base/java.lang.Class.forName(Class.java:398)
at org.springframework.util.ClassUtils.forName(ClassUtils.java:284)
at org.springframework.beans.factory.support.AbstractBeanDefinition.resolveBeanClass(AbstractBeanDefinition.java:469)
at org.springframework.beans.factory.support.AbstractBeanFactory.doResolveBeanClass(AbstractBeanFactory.java:1551)
at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1478)

Samza tutorial compileScala FAILED

Not sure how to fix this problem as I am new to Samza and Scala.
I am following the tutorial and currently stuck on this section: https://github.com/apache/samza-hello-samza#2-start-a-grid
And this is the error message I get
> Task :samza-core_2.11:compileScala FAILED
error: scala.reflect.internal.MissingRequirementError: object java.lang.Object in compiler mirror not found.
at scala.reflect.internal.MissingRequirementError$.signal(MissingRequirementError.scala:17)
at scala.reflect.internal.MissingRequirementError$.notFound(MissingRequirementError.scala:18)
at scala.reflect.internal.Mirrors$RootsBase.getModuleOrClass(Mirrors.scala:53)
at scala.reflect.internal.Mirrors$RootsBase.getModuleOrClass(Mirrors.scala:45)
at scala.reflect.internal.Mirrors$RootsBase.getModuleOrClass(Mirrors.scala:45)
at scala.reflect.internal.Mirrors$RootsBase.getModuleOrClass(Mirrors.scala:66)
at scala.reflect.internal.Mirrors$RootsBase.getClassByName(Mirrors.scala:102)
at scala.reflect.internal.Mirrors$RootsBase.getRequiredClass(Mirrors.scala:105)
at scala.reflect.internal.Definitions$DefinitionsClass.ObjectClass$lzycompute(Definitions.scala:257)
at scala.reflect.internal.Definitions$DefinitionsClass.ObjectClass(Definitions.scala:257)
at scala.reflect.internal.Definitions$DefinitionsClass.init(Definitions.scala:1394)
at scala.tools.nsc.Global$Run.<init>(Global.scala:1215)
at scala.tools.nsc.Driver.doCompile(Driver.scala:31)
at scala.tools.nsc.MainClass.doCompile(Main.scala:23)
at scala.tools.nsc.Driver.process(Driver.scala:51)
at scala.tools.nsc.Main.process(Main.scala)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at sbt.compiler.RawCompiler.apply(RawCompiler.scala:33)
at sbt.compiler.AnalyzingCompiler$$anonfun$compileSources$1$$anonfun$apply$2.apply(AnalyzingCompiler.scala:159)
at sbt.compiler.AnalyzingCompiler$$anonfun$compileSources$1$$anonfun$apply$2.apply(AnalyzingCompiler.scala:155)
at sbt.IO$.withTemporaryDirectory(IO.scala:358)
at sbt.compiler.AnalyzingCompiler$$anonfun$compileSources$1.apply(AnalyzingCompiler.scala:155)
at sbt.compiler.AnalyzingCompiler$$anonfun$compileSources$1.apply(AnalyzingCompiler.scala:152)
at sbt.IO$.withTemporaryDirectory(IO.scala:358)
at sbt.compiler.AnalyzingCompiler$.compileSources(AnalyzingCompiler.scala:152)
at sbt.compiler.IC$.compileInterfaceJar(IncrementalCompiler.scala:58)
at sbt.compiler.IC.compileInterfaceJar(IncrementalCompiler.scala)
at org.gradle.api.internal.tasks.scala.ZincScalaCompilerFactory.getCompilerInterface(ZincScalaCompilerFactory.java:119)
at org.gradle.api.internal.tasks.scala.ZincScalaCompilerFactory.access$200(ZincScalaCompilerFactory.java:48)
at org.gradle.api.internal.tasks.scala.ZincScalaCompilerFactory$2.apply(ZincScalaCompilerFactory.java:90)
at org.gradle.api.internal.tasks.scala.ZincScalaCompilerFactory$2.apply(ZincScalaCompilerFactory.java:87)
at com.typesafe.zinc.Cache.get(Cache.scala:41)
at org.gradle.api.internal.tasks.scala.ZincScalaCompilerFactory.createCompiler(ZincScalaCompilerFactory.java:87)
at org.gradle.api.internal.tasks.scala.ZincScalaCompilerFactory.access$100(ZincScalaCompilerFactory.java:48)
at org.gradle.api.internal.tasks.scala.ZincScalaCompilerFactory$1.create(ZincScalaCompilerFactory.java:76)
at org.gradle.api.internal.tasks.scala.ZincScalaCompilerFactory$1.create(ZincScalaCompilerFactory.java:72)
at org.gradle.internal.SystemProperties.withSystemProperty(SystemProperties.java:141)
at org.gradle.api.internal.tasks.scala.ZincScalaCompilerFactory.createParallelSafeCompiler(ZincScalaCompilerFactory.java:72)
at org.gradle.api.internal.tasks.scala.ZincScalaCompiler$Compiler.execute(ZincScalaCompiler.java:64)
at org.gradle.api.internal.tasks.scala.ZincScalaCompiler.execute(ZincScalaCompiler.java:52)
at org.gradle.api.internal.tasks.scala.ZincScalaCompiler.execute(ZincScalaCompiler.java:38)
at org.gradle.api.internal.tasks.compile.daemon.AbstractDaemonCompiler$CompilerCallable.call(AbstractDaemonCompiler.java:88)
at org.gradle.api.internal.tasks.compile.daemon.AbstractDaemonCompiler$CompilerCallable.call(AbstractDaemonCompiler.java:76)
at org.gradle.workers.internal.DefaultWorkerServer.execute(DefaultWorkerServer.java:42)
at org.gradle.workers.internal.WorkerDaemonServer.execute(WorkerDaemonServer.java:46)
at org.gradle.workers.internal.WorkerDaemonServer.execute(WorkerDaemonServer.java:30)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at org.gradle.process.internal.worker.request.WorkerAction.run(WorkerAction.java:101)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:155)
at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:137)
at org.gradle.internal.remote.internal.hub.MessageHub$Handler.run(MessageHub.java:404)
at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1135)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
at java.base/java.lang.Thread.run(Thread.java:844)
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':samza-core_2.11:compileScala'.
> org.gradle.internal.serialize.PlaceholderException (no error message)
In the grid file, replace the samza download url to https://github.com/apache/samza.git
Delete the .m2 folder and restart the grid. It should work.

java.lang.NoClassDefFoundError: com/sybase/jdbcx/SybConnection weblogic

I am getting below error when I call my rest web service which uses a Sybase DB on WebLogic 10.3.5. I have a JNDI data source defined, I tested the connection and it was succesfull.
java.lang.NoClassDefFoundError: com/sybase/jdbcx/SybConnection
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:630)
at java.lang.ClassLoader.defineClass(ClassLoader.java:614)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
at weblogic.utils.classloaders.GenericClassLoader.defineClass(GenericClassLoader.java:343)
at weblogic.utils.classloaders.GenericClassLoader.findLocalClass(GenericClassLoader.java:302)
at weblogic.utils.classloaders.GenericClassLoader.findClass(GenericClassLoader.java:270)
at java.lang.ClassLoader.loadClass(ClassLoader.java:305)
at java.lang.ClassLoader.loadClass(ClassLoader.java:246)
at weblogic.utils.classloaders.GenericClassLoader.loadClass(GenericClassLoader.java:179)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:247)
at weblogic.utils.classloaders.GenericClassLoader.defineCodeGenClass(GenericClassLoader.java:523)
at weblogic.utils.classfile.utils.CodeGenerator.generateClass(CodeGenerator.java:73)
at weblogic.utils.wrapper.WrapperFactory.generateWrapperClass(WrapperFactory.java:340)
at weblogic.utils.wrapper.WrapperFactory.getWrapperClass(WrapperFactory.java:244)
at weblogic.utils.wrapper.WrapperFactory.getWrapperClass(WrapperFactory.java:190)
at weblogic.jdbc.wrapper.JDBCWrapperFactory$1.run(JDBCWrapperFactory.java:164)
at java.security.AccessController.doPrivileged(Native Method)
at weblogic.jdbc.wrapper.JDBCWrapperFactory.getWrapper(JDBCWrapperFactory.java:161)
at weblogic.jdbc.pool.Driver.allocateConnection(Driver.java:251)
at weblogic.jdbc.pool.Driver.connect(Driver.java:164)
at weblogic.jdbc.jts.Driver.getNonTxConnection(Driver.java:651)
at weblogic.jdbc.jts.Driver.connect(Driver.java:127)
at weblogic.jdbc.common.internal.RmiDataSource.getConnection(RmiDataSource.java:364)
at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:111)
at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:77)
at org.mybatis.spring.SqlSessionUtils.getSqlSession(SqlSessionUtils.java:116)
at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:333)
at $Proxy102.selectOne(Unknown Source)
at org.mybatis.spring.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:154)
at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:75)
at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:38)
at $Proxy103.getAssetMap(Unknown Source)
at com.pbc.service.AssetController.GetHashMap(AssetController.java:38)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)
at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:436)
at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:424)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:790)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:549)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:300)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:183)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3717)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3681)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2277)
at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2183)
at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1454)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)
Caused by: java.lang.ClassNotFoundException: com.sybase.jdbcx.SybConnection
at weblogic.utils.classloaders.GenericClassLoader.findLocalClass(GenericClassLoader.java:297)
at weblogic.utils.classloaders.GenericClassLoader.findClass(GenericClassLoader.java:270)
at java.lang.ClassLoader.loadClass(ClassLoader.java:305)
at java.lang.ClassLoader.loadClass(ClassLoader.java:246)
at weblogic.utils.classloaders.GenericClassLoader.loadClass(GenericClassLoader.java:179)
... 61 more
jconn3.jar is there in classpath and also I am seeing it getting loaded when server starts.
I am helpless, I search everywhere but in vain.