I need to mock builder.type(...).post(...) inorder to write test case for rest client.
But I'am getting null pointer exception when mocking it.
method to be mocked:
ClientResponse response = builder.type(MediaType.APPLICATION_JSON).post(ClientResponse.class, credentials);
powermock-easymock code:
client_Response=new ClientResponse(201, null, null, null);
expect(builder.type(MediaType.APPLICATION_JSON).post(ClientResponse.class, credentials)).andReturn(clientResponse);
replay(builder);
java.lang.NullPointerException
at com.xx.xx.xx.xx.xx.xx.testServiceManagerImpl1(ServiceManagerImplTest.java:130)
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.junit.internal.runners.TestMethod.invoke(TestMethod.java:66)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runTestMethod(PowerMockJUnit44RunnerDelegateImpl.java:310)
at org.junit.internal.runners.MethodRoadie$2.run(MethodRoadie.java:86)
at org.junit.internal.runners.MethodRoadie.runBeforesThenTestThenAfters(MethodRoadie.java:94)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.executeTest(PowerMockJUnit44RunnerDelegateImpl.java:294)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.executeTestInSuper(PowerMockJUnit47RunnerDelegateImpl.java:127)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.executeTest(PowerMockJUnit47RunnerDelegateImpl.java:82)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runBeforesThenTestThenAfters(PowerMockJUnit44RunnerDelegateImpl.java:282)
at org.junit.internal.runners.MethodRoadie.runTest(MethodRoadie.java:84)
at org.junit.internal.runners.MethodRoadie.run(MethodRoadie.java:49)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.invokeTestMethod(PowerMockJUnit44RunnerDelegateImpl.java:207)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.runMethods(PowerMockJUnit44RunnerDelegateImpl.java:146)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$1.run(PowerMockJUnit44RunnerDelegateImpl.java:120)
at org.junit.internal.runners.ClassRoadie.runUnprotected(ClassRoadie.java:34)
at org.junit.internal.runners.ClassRoadie.runProtected(ClassRoadie.java:44)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.run(PowerMockJUnit44RunnerDelegateImpl.java:118)
at org.powermock.modules.junit4.common.internal.impl.JUnit4TestSuiteChunkerImpl.run(JUnit4TestSuiteChunkerImpl.java:101)
at org.powermock.modules.junit4.common.internal.impl.AbstractCommonPowerMockRunner.run(AbstractCommonPowerMockRunner.java:53)
at org.powermock.modules.junit4.PowerMockRunner.run(PowerMockRunner.java:53)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:49)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
you have to first mock type() and then mock post(). not sure about the api of builder and easy-mock, the possible code might be:
expect(builder.type(MediaType.APPLICATION_JSON)).andReturn(mockType)
expect(mockType.post(ClientResponse.class, credentials)).andReturn(clientResponse)
Related
A spark job running as a Databricks job tries to access an external rest api via http and the following error occurs: ERROR ScalaDriverLocal: User Code Stack Trace:
javax.net.ssl.SSLHandshakeException: Received fatal alert: handshake_failure
Here is the code making the http call
Request request = new Request.Builder()
.url("https://some_url")
.get()
.addHeader("cache-control", "no-cache")
.build();
Response response = client.newCall(request).execute();
I have tried setting the https.protocols system variable in the code as follows
System.setProperty("https.protocols","TLSv1,TLSv1.1,TLSv1.2");
without results.
Here is the full stacktrace of the error:
ERROR ScalaDriverLocal: User Code Stack Trace:
javax.net.ssl.SSLHandshakeException: Received fatal alert: handshake_failure
at sun.security.ssl.Alerts.getSSLException(Alerts.java:192)
at sun.security.ssl.Alerts.getSSLException(Alerts.java:154)
at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:2020)
at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1127)
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1367)
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1395)
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1379)
at okhttp3.internal.connection.RealConnection.connectTls(RealConnection.kt:351)
at okhttp3.internal.connection.RealConnection.establishProtocol(RealConnection.kt:310)
at okhttp3.internal.connection.RealConnection.connect(RealConnection.kt:178)
at okhttp3.internal.connection.ExchangeFinder.findConnection(ExchangeFinder.kt:236)
at okhttp3.internal.connection.ExchangeFinder.findHealthyConnection(ExchangeFinder.kt:109)
at okhttp3.internal.connection.ExchangeFinder.find(ExchangeFinder.kt:77)
at okhttp3.internal.connection.Transmitter.newExchange$okhttp(Transmitter.kt:162)
at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.kt:35)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:112)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:87)
at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.kt:82)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:112)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:87)
at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.kt:84)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:112)
at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.kt:71)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:112)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:87)
at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.kt:184)
at okhttp3.RealCall.execute(RealCall.kt:66)
at com.mycompany.metadata.MetadataRepository.loadAggregations(MetadataRepository.java:50)
at com.mycompany.jobs.DefaultJob.run(DefaultJob.java:50)
at com.mycompany.run.Main.main(Main.java:26)
at line7ccb0b1a0bd6475aac11185531c9050025.$read$$iw$$iw$$iw$$iw$$iw$$iw.<init>(command--1:1)
at line7ccb0b1a0bd6475aac11185531c9050025.$read$$iw$$iw$$iw$$iw$$iw.<init>(command--1:44)
at line7ccb0b1a0bd6475aac11185531c9050025.$read$$iw$$iw$$iw$$iw.<init>(command--1:46)
at line7ccb0b1a0bd6475aac11185531c9050025.$read$$iw$$iw$$iw.<init>(command--1:48)
at line7ccb0b1a0bd6475aac11185531c9050025.$read$$iw$$iw.<init>(command--1:50)
at line7ccb0b1a0bd6475aac11185531c9050025.$read$$iw.<init>(command--1:52)
at line7ccb0b1a0bd6475aac11185531c9050025.$read.<init>(command--1:54)
at line7ccb0b1a0bd6475aac11185531c9050025.$read$.<init>(command--1:58)
at line7ccb0b1a0bd6475aac11185531c9050025.$read$.<clinit>(command--1)
at line7ccb0b1a0bd6475aac11185531c9050025.$eval$.$print$lzycompute(<notebook>:7)
at line7ccb0b1a0bd6475aac11185531c9050025.$eval$.$print(<notebook>:6)
at line7ccb0b1a0bd6475aac11185531c9050025.$eval.$print(<notebook>)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at scala.tools.nsc.interpreter.IMain$ReadEvalPrint.call(IMain.scala:793)
at scala.tools.nsc.interpreter.IMain$Request.loadAndRun(IMain.scala:1054)
at scala.tools.nsc.interpreter.IMain$WrappedRequest$$anonfun$loadAndRunReq$1.apply(IMain.scala:645)
at scala.tools.nsc.interpreter.IMain$WrappedRequest$$anonfun$loadAndRunReq$1.apply(IMain.scala:644)
at scala.reflect.internal.util.ScalaClassLoader$class.asContext(ScalaClassLoader.scala:31)
at scala.reflect.internal.util.AbstractFileClassLoader.asContext(AbstractFileClassLoader.scala:19)
at scala.tools.nsc.interpreter.IMain$WrappedRequest.loadAndRunReq(IMain.scala:644)
at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:576)
at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:572)
at com.databricks.backend.daemon.driver.DriverILoop.execute(DriverILoop.scala:215)
at com.databricks.backend.daemon.driver.ScalaDriverLocal$$anonfun$repl$1.apply$mcV$sp(ScalaDriverLocal.scala:197)
at com.databricks.backend.daemon.driver.ScalaDriverLocal$$anonfun$repl$1.apply(ScalaDriverLocal.scala:197)
at com.databricks.backend.daemon.driver.ScalaDriverLocal$$anonfun$repl$1.apply(ScalaDriverLocal.scala:197)
at com.databricks.backend.daemon.driver.DriverLocal$TrapExitInternal$.trapExit(DriverLocal.scala:679)
at com.databricks.backend.daemon.driver.DriverLocal$TrapExit$.apply(DriverLocal.scala:632)
at com.databricks.backend.daemon.driver.ScalaDriverLocal.repl(ScalaDriverLocal.scala:197)
at com.databricks.backend.daemon.driver.DriverLocal$$anonfun$execute$8.apply(DriverLocal.scala:368)
at com.databricks.backend.daemon.driver.DriverLocal$$anonfun$execute$8.apply(DriverLocal.scala:345)
at com.databricks.logging.UsageLogging$$anonfun$withAttributionContext$1.apply(UsageLogging.scala:238)
at scala.util.DynamicVariable.withValue(DynamicVariable.scala:58)
at com.databricks.logging.UsageLogging$class.withAttributionContext(UsageLogging.scala:233)
at com.databricks.backend.daemon.driver.DriverLocal.withAttributionContext(DriverLocal.scala:48)
at com.databricks.logging.UsageLogging$class.withAttributionTags(UsageLogging.scala:271)
at com.databricks.backend.daemon.driver.DriverLocal.withAttributionTags(DriverLocal.scala:48)
at com.databricks.backend.daemon.driver.DriverLocal.execute(DriverLocal.scala:345)
at com.databricks.backend.daemon.driver.DriverWrapper$$anonfun$tryExecutingCommand$2.apply(DriverWrapper.scala:644)
at com.databricks.backend.daemon.driver.DriverWrapper$$anonfun$tryExecutingCommand$2.apply(DriverWrapper.scala:644)
at scala.util.Try$.apply(Try.scala:192)
at com.databricks.backend.daemon.driver.DriverWrapper.tryExecutingCommand(DriverWrapper.scala:639)
at com.databricks.backend.daemon.driver.DriverWrapper.getCommandOutputAndError(DriverWrapper.scala:485)
at com.databricks.backend.daemon.driver.DriverWrapper.executeCommand(DriverWrapper.scala:597)
at com.databricks.backend.daemon.driver.DriverWrapper.runInnerLoop(DriverWrapper.scala:390)
at com.databricks.backend.daemon.driver.DriverWrapper.runInner(DriverWrapper.scala:337)
at com.databricks.backend.daemon.driver.DriverWrapper.run(DriverWrapper.scala:219)
at java.lang.Thread.run(Thread.java:748)
I couldn't ping point the cause of the problem but I found a workaround which is not to use OkHttp, replacing the code that makes a request with this worked.
HttpResponse<String> response = Unirest.get("<some_url>")
.header("cache-control", "no-cache")
.asString();
This is because of secure cipher suites incompatibility:
Databricks is choosing efficient cipher suites
OkHttp - modern secure cipher suites
To make it work, you can analyze the API with https://www.ssllabs.com/ssltest/
There would be a section with Cipher Suites supported by the API, you have to explicitly set them like this (for my situation CBC_SHA256 was the deal):
ConnectionSpec spec = new ConnectionSpec.Builder(ConnectionSpec.MODERN_TLS)
.tlsVersions(TlsVersion.TLS_1_2)
.cipherSuites(
CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,
CipherSuite.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
)
.build();
OkHttpClient client = new OkHttpClient.Builder()
.connectionSpecs(Collections.singletonList(spec))
.build();
https://square.github.io/okhttp/https/
I've found a lot of information and description here:
https://github.com/square/okhttp/issues/6138
Has anyone seen this before? The error below happens when I build my Scala/Play project in Intellij. As you can see none of my code is part of the call-stack.
Error:scalac: Error: assertion failed: scala.<none>
java.lang.AssertionError: assertion failed: scala.<none>
at scala.reflect.internal.Trees$AppliedTypeTree.<init>(Trees.scala:579)
at scala.reflect.internal.TreeGen.mkTupleType(TreeGen.scala:293)
at scala.tools.nsc.ast.parser.TreeBuilder.makeTupleType(TreeBuilder.scala:44)
at scala.tools.nsc.ast.parser.Parsers$Parser$PatternContextSensitive$class.scala$tools$nsc$ast$parser$Parsers$Parser$PatternContextSensitive$$tupleInfixType(Parsers.scala:877)
at scala.tools.nsc.ast.parser.Parsers$Parser$PatternContextSensitive$$anonfun$typ$1.apply(Parsers.scala:910)
at scala.tools.nsc.ast.parser.Parsers$Parser$PatternContextSensitive$$anonfun$typ$1.apply(Parsers.scala:907)
at scala.tools.nsc.ast.parser.Parsers$Parser.placeholderTypeBoundary(Parsers.scala:487)
at scala.tools.nsc.ast.parser.Parsers$Parser$PatternContextSensitive$class.typ(Parsers.scala:907)
at scala.tools.nsc.ast.parser.Parsers$Parser$outPattern$.typ(Parsers.scala:1995)
at scala.tools.nsc.ast.parser.Parsers$Parser$outPattern$.argType(Parsers.scala:1996)
at scala.tools.nsc.ast.parser.Parsers$Parser$PatternContextSensitive$$anonfun$types$1.apply(Parsers.scala:1042)
at scala.tools.nsc.ast.parser.Parsers$Parser$PatternContextSensitive$$anonfun$types$1.apply(Parsers.scala:1042)
at scala.tools.nsc.ast.parser.Parsers$Parser.tokenSeparated(Parsers.scala:761)
at scala.tools.nsc.ast.parser.Parsers$Parser$PatternContextSensitive$class.types(Parsers.scala:1042)
at scala.tools.nsc.ast.parser.Parsers$Parser$outPattern$.types(Parsers.scala:1995)
at scala.tools.nsc.ast.parser.Parsers$Parser$PatternContextSensitive$class.typeArgs(Parsers.scala:924)
at scala.tools.nsc.ast.parser.Parsers$Parser$outPattern$.typeArgs(Parsers.scala:1995)
at scala.tools.nsc.ast.parser.Parsers$Parser$PatternContextSensitive$class.simpleTypeRest(Parsers.scala:963)
at scala.tools.nsc.ast.parser.Parsers$Parser$outPattern$.simpleTypeRest(Parsers.scala:1995)
at scala.tools.nsc.ast.parser.Parsers$Parser$PatternContextSensitive$class.simpleType(Parsers.scala:943)
at scala.tools.nsc.ast.parser.Parsers$Parser$outPattern$.simpleType(Parsers.scala:1995)
at scala.tools.nsc.ast.parser.Parsers$Parser$PatternContextSensitive$$anonfun$annotType$1.apply(Parsers.scala:930)
at scala.tools.nsc.ast.parser.Parsers$Parser$PatternContextSensitive$$anonfun$annotType$1.apply(Parsers.scala:930)
at scala.tools.nsc.ast.parser.Parsers$Parser.placeholderTypeBoundary(Parsers.scala:487)
at scala.tools.nsc.ast.parser.Parsers$Parser$PatternContextSensitive$class.annotType(Parsers.scala:930)
at scala.tools.nsc.ast.parser.Parsers$Parser$outPattern$.annotType(Parsers.scala:1995)
at scala.tools.nsc.ast.parser.Parsers$Parser.startAnnotType(Parsers.scala:2017)
at scala.tools.nsc.ast.parser.Parsers$Parser.readAppliedParent$1(Parsers.scala:2822)
at scala.tools.nsc.ast.parser.Parsers$Parser.templateParents(Parsers.scala:2828)
at scala.tools.nsc.ast.parser.Parsers$Parser.template(Parsers.scala:2855)
at scala.tools.nsc.ast.parser.Parsers$Parser.templateOpt(Parsers.scala:2886)
at scala.tools.nsc.ast.parser.Parsers$Parser$$anonfun$classDef$1.apply(Parsers.scala:2753)
at scala.tools.nsc.ast.parser.Parsers$Parser$$anonfun$classDef$1.apply(Parsers.scala:2733)
at scala.tools.nsc.ast.parser.Parsers$Parser.savingClassContextBounds(Parsers.scala:329)
at scala.tools.nsc.ast.parser.Parsers$Parser.classDef(Parsers.scala:2733)
at scala.tools.nsc.ast.parser.Parsers$Parser.tmplDef(Parsers.scala:2710)
at scala.tools.nsc.ast.parser.Parsers$Parser.defOrDcl(Parsers.scala:2467)
at scala.tools.nsc.ast.parser.Parsers$Parser.nonLocalDefOrDcl(Parsers.scala:2475)
at scala.tools.nsc.ast.parser.Parsers$Parser$$anonfun$templateStat$1$$anonfun$applyOrElse$3.apply(Parsers.scala:3032)
at scala.tools.nsc.ast.parser.Parsers$Parser$$anonfun$templateStat$1$$anonfun$applyOrElse$3.apply(Parsers.scala:3032)
at scala.tools.nsc.ast.parser.Parsers$Parser.joinComment(Parsers.scala:702)
at scala.tools.nsc.ast.parser.Parsers$Parser$$anonfun$templateStat$1.applyOrElse(Parsers.scala:3032)
at scala.tools.nsc.ast.parser.Parsers$Parser$$anonfun$templateStat$1.applyOrElse(Parsers.scala:3027)
at scala.tools.nsc.ast.parser.Parsers$Parser.statSeq(Parsers.scala:2959)
at scala.tools.nsc.ast.parser.Parsers$Parser.templateStats(Parsers.scala:3026)
at scala.tools.nsc.ast.parser.Parsers$Parser$$anonfun$templateStatSeq$1.apply(Parsers.scala:3013)
at scala.tools.nsc.ast.parser.Parsers$Parser$$anonfun$templateStatSeq$1.apply(Parsers.scala:2990)
at scala.tools.nsc.ast.parser.Parsers$Parser.checkNoEscapingPlaceholders(Parsers.scala:464)
at scala.tools.nsc.ast.parser.Parsers$Parser.templateStatSeq(Parsers.scala:2990)
at scala.tools.nsc.ast.parser.Parsers$Parser.templateBody(Parsers.scala:2919)
at scala.tools.nsc.ast.parser.Parsers$Parser.templateBodyOpt(Parsers.scala:2926)
at scala.tools.nsc.ast.parser.Parsers$Parser.template(Parsers.scala:2856)
at scala.tools.nsc.ast.parser.Parsers$Parser.templateOpt(Parsers.scala:2886)
at scala.tools.nsc.ast.parser.Parsers$Parser.objectDef(Parsers.scala:2775)
at scala.tools.nsc.ast.parser.Parsers$Parser.tmplDef(Parsers.scala:2714)
at scala.tools.nsc.ast.parser.Parsers$Parser.topLevelTmplDef(Parsers.scala:2695)
at scala.tools.nsc.ast.parser.Parsers$Parser$$anonfun$topStat$1$$anonfun$applyOrElse$2.apply(Parsers.scala:2982)
at scala.tools.nsc.ast.parser.Parsers$Parser$$anonfun$topStat$1$$anonfun$applyOrElse$2.apply(Parsers.scala:2982)
at scala.tools.nsc.ast.parser.Parsers$Parser.joinComment(Parsers.scala:702)
at scala.tools.nsc.ast.parser.Parsers$Parser$$anonfun$topStat$1.applyOrElse(Parsers.scala:2982)
at scala.tools.nsc.ast.parser.Parsers$Parser$$anonfun$topStat$1.applyOrElse(Parsers.scala:2975)
at scala.tools.nsc.ast.parser.Parsers$Parser.statSeq(Parsers.scala:2959)
at scala.tools.nsc.ast.parser.Parsers$Parser.topStatSeq(Parsers.scala:2974)
at scala.tools.nsc.ast.parser.Parsers$Parser$$anonfun$compilationUnit$1.topstats$1(Parsers.scala:3172)
at scala.tools.nsc.ast.parser.Parsers$Parser$$anonfun$compilationUnit$1.apply(Parsers.scala:3178)
at scala.tools.nsc.ast.parser.Parsers$Parser$$anonfun$compilationUnit$1.apply(Parsers.scala:3140)
at scala.tools.nsc.ast.parser.Parsers$Parser.checkNoEscapingPlaceholders(Parsers.scala:464)
at scala.tools.nsc.ast.parser.Parsers$Parser.compilationUnit(Parsers.scala:3140)
at scala.tools.nsc.ast.parser.Parsers$SourceFileParser$$anonfun$parseStartRule$1.apply(Parsers.scala:146)
at scala.tools.nsc.ast.parser.Parsers$SourceFileParser$$anonfun$parseStartRule$1.apply(Parsers.scala:146)
at scala.tools.nsc.ast.parser.Parsers$Parser$$anonfun$parse$1.apply(Parsers.scala:354)
at scala.tools.nsc.ast.parser.Parsers$Parser$$anonfun$parse$1.apply(Parsers.scala:354)
at scala.tools.nsc.ast.parser.Parsers$Parser.parseRule(Parsers.scala:347)
at scala.tools.nsc.ast.parser.Parsers$Parser.parse(Parsers.scala:354)
at scala.tools.nsc.ast.parser.Parsers$UnitParser.smartParse(Parsers.scala:243)
at scala.tools.nsc.ast.parser.SyntaxAnalyzer.scala$tools$nsc$ast$parser$SyntaxAnalyzer$$initialUnitBody(SyntaxAnalyzer.scala:87)
at scala.tools.nsc.ast.parser.SyntaxAnalyzer$ParserPhase.apply(SyntaxAnalyzer.scala:99)
at scala.tools.nsc.Global$GlobalPhase.applyPhase(Global.scala:430)
at scala.tools.nsc.Global$GlobalPhase$$anonfun$run$1.apply(Global.scala:397)
at scala.tools.nsc.Global$GlobalPhase$$anonfun$run$1.apply(Global.scala:397)
at scala.collection.Iterator$class.foreach(Iterator.scala:743)
at scala.collection.AbstractIterator.foreach(Iterator.scala:1174)
at scala.tools.nsc.Global$GlobalPhase.run(Global.scala:397)
at scala.tools.nsc.Global$Run.compileUnitsInternal(Global.scala:1625)
at scala.tools.nsc.Global$Run.compileUnits(Global.scala:1610)
at scala.tools.nsc.Global$Run.compileSources(Global.scala:1605)
at scala.tools.nsc.Global$Run.compile(Global.scala:1703)
at xsbt.CachedCompiler0.run(CompilerInterface.scala:126)
at xsbt.CachedCompiler0.run(CompilerInterface.scala:102)
at xsbt.CompilerInterface.run(CompilerInterface.scala:27)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at sbt.compiler.AnalyzingCompiler.call(AnalyzingCompiler.scala:102)
at sbt.compiler.AnalyzingCompiler.compile(AnalyzingCompiler.scala:48)
at sbt.compiler.AnalyzingCompiler.compile(AnalyzingCompiler.scala:41)
at org.jetbrains.jps.incremental.scala.local.IdeaIncrementalCompiler.compile(IdeaIncrementalCompiler.scala:28)
at org.jetbrains.jps.incremental.scala.local.LocalServer.compile(LocalServer.scala:25)
at org.jetbrains.jps.incremental.scala.remote.Main$.make(Main.scala:64)
at org.jetbrains.jps.incremental.scala.remote.Main$.nailMain(Main.scala:22)
at org.jetbrains.jps.incremental.scala.remote.Main.nailMain(Main.scala)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.martiansoftware.nailgun.NGSession.run(NGSession.java:319)
The build was working fine previously so I wonder if it's an environmental issue.
Based on this PasteBin I know I'm not the first person to see this issue: http://pastebin.com/VtFy12UJ
Have you tried compiling outside of Intellij to see if that fixed the issue?
It's probably because you have a tuple with more than 22 items. Relevant Scala ticket: https://issues.scala-lang.org/browse/SI-9572
Double check your code.
Hello i am new to Scala . I tried this code
def web ( url : Any) {
| val ur= new URL("url")
| val content=fromInputStream(ur.openStream).getLines.mkString("\n")
| print(content)
| }
when i pass a url like web("http://contentexplore.com/iphone-6-amazing-looks/")
it is showing error
java.net.MalformedURLException: no protocol: url
at java.net.URL.<init>(URL.java:585)
at java.net.URL.<init>(URL.java:482)
at java.net.URL.<init>(URL.java:431)
at .web(<console>:22)
at .<init>(<console>:23)
at .<clinit>(<console>)
at .<init>(<console>:11)
at .<clinit>(<console>)
at $print(<console>)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at scala.tools.nsc.interpreter.IMain$ReadEvalPrint.call(IMain.scala:704)
at scala.tools.nsc.interpreter.IMain$Request$$anonfun$14.apply(IMain.scala:920)
at scala.tools.nsc.interpreter.Line$$anonfun$1.apply$mcV$sp(Line.scala:43)
at scala.tools.nsc.io.package$$anon$2.run(package.scala:25)
at java.lang.Thread.run(Thread.java:722)
My question is how can i pass a url explicitly in scala .Kindly suggest me an idea .Thanks in advance
As mentioned in the comments, this line is the problem:
val ur= new URL("url")
If you want to create a URL from the input param url, the code should be:
val ur= new URL(url)
With the error, the java URL class was trying to parse a String with value "url", looking first for a recognized protocol (http, https, etc...) and not finding one, so that's why you were seeing that error.
As usual in these days I am working hard on drools. Honestly I have a lot of difficulties and I am a little bi discouraged. Now I have this problem.
My application has to monitor when a magnetic contact is activated and when it is contact released event has to be retracted. And viceversa. Here is my rule and the big null pointer I have. Any helps will be very appreciated! Thank you a lot!!
rule "contact activated vs contact released" salience 0 no-loop true
when
$contact_activated : Event(type == EventType.CONTACT_ACTIVATED) ||
$contact_released : Event(type == EventType.CONTACT_RELEASED)
then
if($contact_activated!= null) {
retract($contact_activated);
} else {
retract($contact_released);
}
end
and
I have
java.lang.NullPointerException
at org.drools.reteoo.RuleTerminalNode$SortDeclarations.compare(RuleTerminalNode.java:477)
at org.drools.reteoo.RuleTerminalNode$SortDeclarations.compare(RuleTerminalNode.java:473)
at java.util.Arrays.mergeSort(Arrays.java:1270)
at java.util.Arrays.sort(Arrays.java:1210)
at org.drools.reteoo.RuleTerminalNode.<init>(RuleTerminalNode.java:119)
at org.drools.RuleActivationListenerFactory.createActivationListener(RuleActivationListenerFactory.java:21)
at org.drools.reteoo.builder.ReteooRuleBuilder.addSubRule(ReteooRuleBuilder.java:157)
at org.drools.reteoo.builder.ReteooRuleBuilder.addRule(ReteooRuleBuilder.java:123)
at org.drools.reteoo.ReteooBuilder.addRule(ReteooBuilder.java:110)
at org.drools.reteoo.ReteooRuleBase.addRule(ReteooRuleBase.java:441)
at org.drools.common.AbstractRuleBase.addRule(AbstractRuleBase.java:821)
at org.drools.common.AbstractRuleBase.addPackages(AbstractRuleBase.java:555)
at org.drools.reteoo.ReteooRuleBase.addPackages(ReteooRuleBase.java:458)
at org.drools.impl.KnowledgeBaseImpl.addKnowledgePackages(KnowledgeBaseImpl.java:150)
at it.ipiu.pch.sel.RuleTest.before(RuleTest.java:1272)
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.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:27)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:49)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
This looks like a bug, I suggest you submit a JIRA to the project. Which version are you using?
At the same time, your rule is more complicated than it should. Every time you see an "if" in the consequence, it is a red flag something is not good. You can rewrite your rule as:
rule "contact activated vs contact released"
when
$contact : Event( type in ( EventType.CONTACT_ACTIVATED, EventType.CONTACT_RELEASED ) )
then
retract($contact);
end
in my project an RPC interface was implemented to communicate between GWT and a server as described here:
http://code.google.com/webtoolkit/doc/1.6/DevGuideServerCommunication.html
All the existing methods can be invoked fine, but lately i introduced a new method which when calling it results in an RPC failure:
com.google.gwt.user.client.rpc.StatusCodeException: The call failed on the server; see server log for details
at com.google.gwt.user.client.rpc.impl.RequestCallbackAdapter.onResponseReceived(RequestCallbackAdapter.java:192)
at com.google.gwt.http.client.Request.fireOnResponseReceivedImpl(Request.java:254)
at com.google.gwt.http.client.Request.fireOnResponseReceivedAndCatch(Request.java:226)
at com.google.gwt.http.client.Request.fireOnResponseReceived(Request.java:217)
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:592)
at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
at com.google.gwt.dev.shell.moz.MethodDispatch.invoke(MethodDispatch.java:80)
at org.eclipse.swt.internal.gtk.OS._g_main_context_iteration(Native Method)
at org.eclipse.swt.internal.gtk.OS.g_main_context_iteration(OS.java:1428)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2840)
at com.google.gwt.dev.GWTShell.pumpEventLoop(GWTShell.java:720)
at com.google.gwt.dev.GWTShell.run(GWTShell.java:593)
at com.google.gwt.dev.GWTShell.main(GWTShell.java:357)
(This excecption stacktrace is shown when running in hosted mode).
Here's the changes I made:
I extended my service interface with the new method:
#RemoteServiceRelativePath("myservice")
public interface MyService extends RemoteService {
// ...
Boolean isSomethingValid(String paramToCheck);
}
I implemented my method:
public class PMyServiceImpl extends GWTSpringController implements MyService {
// ...
public Boolean isSomethingValid(String paramToCheck) {
// do something ...
}
}
I added the method definition to the asynchronous interface:
public interface MyServiceAsync {
// ...
void isSomethingValid(String paramToCheck, AsyncCallback callback);
}
That's it. Am I missing anything? Any hints why the RPC failure occurs? In my server log, I can see the following exception:
[7/26/11 11:48:16:618 CEST] 0000004a WebApp A SRVE0181I: [myapplication.war] [/istoolset] [Servlet.LOG]: Exception while dispatching incoming RPC call: com.google.gwt.user.server.rpc.UnexpectedException: Service method 'public abstract java.lang.Boolean com.ubs.istoolset.front.fet.gwt.businessmodel.client.service.MyService.isSomethingValid(java.lang.String)' threw an unexpected exception: java.lang.NullPointerException
at com.google.gwt.user.server.rpc.RPC.encodeResponseForFailure(RPC.java:360)
at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:546)
at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:164)
at com.google.gwt.user.server.rpc.RemoteServiceServlet.doPost(RemoteServiceServlet.java:86)
at com.ubs.istoolset.gwt.framework.rpc.GWTSpringController.handleRequest(GWTSpringController.java:48)
at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:48)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:859)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:793)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:476)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:441)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:763)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1146)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:593)
at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:534)
at com.ibm.ws.webcontainer.servlet.CacheServletWrapper.handleRequest(CacheServletWrapper.java:90)
at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:764)
at com.ibm.ws.wswebcontainer.WebContainer.handleRequest(WebContainer.java:1478)
at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:133)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:450)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:508)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:296)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:270)
at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.sendToDiscriminators(NewConnectionInitialReadCallback.java:214)
at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.complete(NewConnectionInitialReadCallback.java:113)
at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:165)
at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217)
at com.ibm.io.async.AsyncChannelFuture$1.run(AsyncChannelFuture.java:205)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1497)
Caused by: java.lang.NullPointerException
at com.ubs.istoolset.front.fet.gwt.businessmodel.server.MyServiceImpl.isSomethingValid(MyServiceImpl.java:1906)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:79)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:618)
at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:527)
... 27 more
Any help is very appreciated, thanks!
I'm not familiar with the com.ubs namespace (is that your code?), but this NullPointerException in your stack trace (server side) is a problem:
Caused by: java.lang.NullPointerException
at com.ubs.istoolset.front.fet.gwt.businessmodel.server.MyServiceImpl.isSomethingValid(MyServiceImpl.java:1906)
what is going on there?