ClassNotFoundException with URLClassLoader in classes.jar (java.net package) - eclipse

On Eclipse Galileo, got the following ClassNotFoundException when doing Debug As/Web Application. But works just fine when doing Run As/Web Application.
I was given message that "The source attachment does not contain the source for the file URLClassLoader.class. You can change the source attachment by clicking the Change Attached Source below:"
In the project window, it seems that the URLClassLoader class is from Java.net package, which is from /System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Classes/classes.jar.
I found the jar on the machine, what else I am missing? why it's debug only issue?
Could it be possible that the JRE system library that I have on my iMac 10.6.5 machine is outdated? Or somehow install/unstall of some jar/package caused the issue?
This is what I have - JRE System Library [JVM 1.6.0 (MacOS X Default)] - would update it help fixing the issue? but how to get it updated?
Please help!
com.google.appengine.tools.development.DevAppServerMain at localhost:57873
Thread [main] (Suspended (exception ClassNotFoundException))
Launcher$ExtClassLoader(URLClassLoader).findClass(String) line: 207
Launcher$ExtClassLoader.findClass(String) line: 229
Launcher$ExtClassLoader(ClassLoader).loadClass(String, boolean) line: 307
Launcher$AppClassLoader(ClassLoader).loadClass(String, boolean) line: 296
Launcher$AppClassLoader.loadClass(String, boolean) line: 301
Launcher$AppClassLoader(ClassLoader).loadClass(String) line: 248
InstrumentationImpl.loadClassAndStartAgent(String, String, String) line: 280
InstrumentationImpl.loadClassAndCallPremain(String, String) line: 338
/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Home/bin/java (Nov 30, 2010 9:40:41 PM)

Perhaps you need to install JDK which has complete sources? Refer to Apple website to download the latest JDK, might need an Apple ID.
After that change eclipse's java runtime accordingly to use the new installed JDK:
And re-build your project: Project -> Source -> Clean-up

Related

PHPUnit is Working With Command Line, but not with Eclipse

Whenever I run a test file from eclipse it works and display result as:
. 1/1 (100%)
Time: 371 ms, Memory: 8.00MB
OK (1 test, 1 assertion)
But If I run the same test from the Eclipse Oxygen, I get the error:
PHP Fatal error: Declaration of PHPUnitLogger::addFailure(Test $test, AssertionFailedError $e, $time): void must be compatible with PHPUnit\Framework\TestListener::addFailure(PHPUnit\Framework\Test $test, PHPUnit\Framework\AssertionFailedError $e, float $time): void in /tmp/phpunit_printer/PHPUnitLogger.php(415) : eval()'d code on line 1
I downloaded phpunit-7.1.phar, and installed it globally by making it executable and moving it to /usr/local/bin and for Eclipse, I have downloaed in the Download directory and without making it executable I added it into my Eclipse Project as an External Phar but it is not working and giving the above error.
Can someone help me fixing the issue?
By the way, I am a NetBeanse User, but NetBeans is not supporting PHP7.1 that's why moving to Eclipse.
UPDATE
Here is my test file:
<?php
namespace tests\Unit\;
use PHPUnit\Framework\TestCase;
class MyTest extends TestCase
{
public function testSimple() {
$this->assertEquals(1, 1);
}
}
I had exactly the same problem with PHPUnit 7.5.14 and didn't find a solution.
Since I wanted to test my application running with PHP 7.1, I decided to try PHPUnit 6 and it worked at once. So PHPUnit 6.5.14 did the trick for me.
It seems Eclipse is not compatible with PHPUnit 7. My Eclipse Version is 2018-12 (4.10.0) with PDT 6.2. After switching to PHPUnit 6 other problems (that I managed to find workarounds for) were gone too. For example the generated class code overrides TestCase::__construct without calling the parent constructor. It seems to be a problem with PHPUnit 7, not so with 6.
I didn't find a compatibility chart of Eclipse PDT to support my thesis.

Debugging OfBiz in Eclipse gives MissingResourceException

I downloaded the OfBiz Java application and the following line throws an MissingResourceException:
ResourceBundle res = ResourceBundle.getBundle(settingsResourceName);
The value of settingsResourceName is "cache", but I cannot find any file called cache.properties or cache_en.properties.
Where should I be looking? I'm new to Java. All my research on SO says there should be such a file.
I imported OfBiz in Eclipse using the Import menu option and selecting Existing Project from File System (I'm not in front of my dev machine so I don't remember the exact wording). But I chose the root folder of the downloaded OfBiz.
I then added the appropriate VM Arguments in the Run Configuration to get it to run properly at least. And that's it, on the first Run I got the above error. I think it has to do with a missing class path but I don't know what to add to class path.
Here is the stack trace:
ERROR StatusLogger No log4j2 configuration file found. Using default configuration: logging only errors to the console.
Exception in thread "main" java.lang.ExceptionInInitializerError
at org.apache.ofbiz.base.util.Debug.<clinit>(Debug.java:68)
at org.apache.ofbiz.base.container.ContainerLoader.load(ContainerLoader.java:61)
at org.apache.ofbiz.base.start.StartupControlPanel.loadStartupLoaders(StartupControlPanel.java:202)
at org.apache.ofbiz.base.start.StartupControlPanel.start(StartupControlPanel.java:69)
at org.apache.ofbiz.base.start.Start.main(Start.java:84)
Caused by: java.util.MissingResourceException: Can't find bundle for base name cache, locale en
at java.util.ResourceBundle.throwMissingResourceException(ResourceBundle.java:1564)
at java.util.ResourceBundle.getBundleImpl(ResourceBundle.java:1387)
at java.util.ResourceBundle.getBundle(ResourceBundle.java:773)
at org.apache.ofbiz.base.util.cache.UtilCache.setPropertiesParams(UtilCache.java:174)
at org.apache.ofbiz.base.util.cache.UtilCache.setPropertiesParams(UtilCache.java:170)
at org.apache.ofbiz.base.util.cache.UtilCache.setPropertiesParams(UtilCache.java:166)
at org.apache.ofbiz.base.util.cache.UtilCache.<init>(UtilCache.java:124)
at org.apache.ofbiz.base.util.cache.UtilCache.createUtilCache(UtilCache.java:769)
at org.apache.ofbiz.base.util.UtilProperties.<clinit>(UtilProperties.java:75)
... 5 more
UPDATE:
My mistake, I found two files both called cache.properties in the following folders:
ofbiz-trunk/build/resources/main
ofbiz-trunk/framework/base/config
But these are folders, not packages. I tried putting them in the .classpath but that did not work, I still kept getting the same error.
As suspected, I knew it was because of a missing reference to a class path. After looking at a section on this page: http://www.opensourcestrategies.com/ofbiz/ofbiz_eclipse.php, I learned that I was supposed to go to the Java Build Path and in the Libraries tab, click on Add Class Folder, then point that to ofbiz-trunk/framework/base/config. Which is where I have one of the cache.properties files.

Error in running a plugin in imageJ

I am using imageJ (Fiji) version: 2.0.0-rc-43/1.50e
I installed a IHC_Profiler (https://sourceforge.net/projects/ihcprofiler/)
And when I run it, it shows a console with this:
Compiling 1 file in
/var/folders/k2/kdrnsbws5gz8vrt83yjmlbdm0000gn/T/java744586229414007803
/var/folders/k2/kdrnsbws5gz8vrt83yjmlbdm0000gn/T/java744586229414007803/src/main/java/IHC_Profiler.java:10: cannot access java.lang.Object
bad class file:
ZipFileIndexFileObject[/Library/Java/JavaVirtualMachines/jdk1.8.0_65.jdk/Contents/Home/lib/ct.sym(META-INF/sym/rt.jar/java/lang/Object.class)]
class file has wrong version 52.0, should be 50.0
Please remove or make sure it appears in the correct subdirectory of the classpath.
public class IHC_Profiler implements PlugIn {
When I use imageJ 1.48 version, it is okay. I wonder if this problem can be solved?
You are running Fiji with Java 8, but without the Java-8 update site enabled.
The easiest solution is to download a fresh Fiji, which comes with the Java-8 update site enabled out of the box.
See this guide for details:
http://imagej.net/2016-05-10_-_ImageJ_HOWTO_-_Java_8,_Java_6,_Java_3D

Running SimpleOpenNI and leJOS in same project

We have a project in which we want to control a Lego Mindstorms robot with the Microsoft Kinect sensor. We decided to use SimpleOpenNI with Processing to read the sensor and leJOS to control the robot for a simple reason: since both is in Java, we can specifiy a kind of RoboHandler and call its methods from the sensor reading class.
In order to achieve that, we downloaded the leJOS plugin for eclipse, created a new leJOS NXT project and put the processing and SimpleOpenNI libraries in the build path. Note that to use SimpleOpenNI, it is required an old processing version without Java.
Now the problem is, that when installing leJOS, it strictly requires a 32-bit Java JDK, so I had to download this and point to it at installation.
At this point, following build paths are in the project:
LeJOS NXT Runtime (which has among others java.awt classes)
core.jar (used to run Processing in eclipse)
SimpleOpenNI.jar
Having all this, and setting up a first Processing sketch like
import processing.core.*;
public class Test extends PApplet{
(....)
}
results in following error code:
Multiple markers at this line
- The type java.awt.event.MouseMotionListener cannot be resolved. It is indirectly referenced from
required .class files
- The type java.applet.Applet cannot be resolved. It is indirectly referenced from required .class files
- The type java.awt.event.MouseListener cannot be resolved. It is indirectly referenced from required .class files
- The hierarchy of the type FirstTry is inconsistent
- The type java.awt.event.FocusListener cannot be resolved. It is indirectly referenced from required .class files
- The type java.awt.event.KeyListener cannot be resolved. It is indirectly referenced from required .class files
When I downloaded the Processing without Java version, I wasn't able to choose from 32bit- or 64bit version. The SimpleOpenNI is installed as 64bit-version.
When adding the 64bit-JDK (eclipse workspace default) as workspace too, the error disappears, but when trying to run a sketch, following error gets printed in the console:
Invalid layout of java.lang.Thread at name
#
# A fatal error has been detected by the Java Runtime Environment:
#
# Internal Error (javaClasses.cpp:128), pid=9176, tid=8740
# fatal error: Invalid layout of preloaded class
#
# JRE version: 7.0_04-b22
# Java VM: Java HotSpot(TM) 64-Bit Server VM (23.0-b21 mixed mode windows-amd64 compressed oops)
# Failed to write core dump. Minidumps are not enabled by default on client versions of Windows
#
# An error report file with more information is saved as:
# C:\Users\Valentino\Desktop\workspaces\workspace_processing\RoboZeugs\bin\hs_err_pid9176.log
#
# If you would like to submit a bug report, please visit:
# http://bugreport.sun.com/bugreport/crash.jsp
#
So in my oppinion there is a problem with the JDK versions (32 and 64 bit), but there must be a way to handle this. Has anyone experience on this specific topic, maybe even with Kinect -> Mindstorms? Can anybody tell me what this error exactly means?
You're mixing classes that are designed to run with the JVM on the NXT brick (i.e. everything in classes.jar) with classes that are designed to run with a fully fledged JVM on the PC.
Don't do that. If you want to remote control an NXT, use pccomms.jar and everything else in lib/pc. But never add classes.jar or anything else in lib/nxt to the classpath when you're starting a Java program on your PC.
The error message about java.lang.Thread is probably due to the fact, that java.lang.Thread in classes.jar in by no means compatible with java.lang.Thread that comes with the JVM on your PC.

org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed: Script7.groovy: 1: unable to resolve class

I am currently receiving this error when trying to run a soapui file:
org.codehaus.groovy.control.MultipleCompilationErrorsException:
startup failed: Script7.groovy: 1: unable to resolve class com.company.ui.test.SoapUI_T11001_StockConsSecurityCurBusiDate # line 1, column 1.
import com.company.ui.test.SoapUI_T11001_StockConsSecurityCurBusiDate
^
org.codehaus.groovy.syntax.SyntaxException: unable to resolve class com.company.ui.test.SoapUI_T11001_StockConsSecurityCurBusiDate # line 1, column 1.
at org.codehaus.groovy.ast.ClassCodeVisitorSupport.addError(ClassCodeVisitorSupport.java:148)
at org.codehaus.groovy.control.ResolveVisitor.visitClass(ResolveVisitor.java:1206)
at org.codehaus.groovy.control.ResolveVisitor.startResolving(ResolveVisitor.java:148)
at org.codehaus.groovy.control.CompilationUnit$6.call(CompilationUnit.java:585)
at org.codehaus.groovy.control.CompilationUnit.applyToSourceUnits(CompilationUnit.java:832)
at org.codehaus.groovy.control.CompilationUnit.doPhaseOperation(CompilationUnit.java:519)
at org.codehaus.groovy.control.CompilationUnit.processPhaseOperations(CompilationUnit.java:495)
at org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:472)
at groovy.lang.GroovyClassLoader.parseClass(GroovyClassLoader.java:292)
at groovy.lang.GroovyShell.parseClass(GroovyShell.java:727)
at groovy.lang.GroovyShell.parse(GroovyShell.java:739)
at groovy.lang.GroovyShell.parse(GroovyShell.java:766)
at groovy.lang.GroovyShell.parse(GroovyShell.java:757)
at com.eviware.soapui.support.scripting.groovy.SoapUIGroovyScriptEngine.compile(SoapUIGroovyScriptEngine.java:141)
at com.eviware.soapui.support.scripting.groovy.SoapUIGroovyScriptEngine.run(SoapUIGroovyScriptEngine.java:90)
at com.eviware.soapui.impl.wsdl.teststeps.WsdlGroovyScriptTestStep.run(WsdlGroovyScriptTestStep.java:148)
at com.eviware.soapui.impl.wsdl.panels.teststeps.GroovyScriptStepDesktopPanel$RunAction$1.run(GroovyScriptStepDesktopPanel.java:274)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
1 error
soapUI code:
import com.company.ui.test.SoapUI_T11001_StockConsSecurityCurBusiDate
def env = testRunner.testCase.testSuite.project.getPropertyValue("env")
def baseUrl = testRunner.testCase.testSuite.project.getPropertyValue("baseUrl")
log.info("The baseurl is "+baseUrl)
log.info("The env under test is "+env)
SoapUI_T11001_StockConsSecurityCurBusiDate testStep = new SoapUI_T11001_StockConsSecurityCurBusiDate();
testStep.init(baseUrl);
testStep.execute(null);
eclipse code:
package com.company.ui.test;
import java.util.concurrent.TimeUnit;
import org.openqa.selenium.By;
import org.openqa.selenium.WebElement;
import com.eviware.soapui.model.support.AbstractSubmitContext;
import com.eviware.soapui.model.testsuite.TestRunner;
public class SoapUI_T11001_StockConsSecurityCurBusiDate extends BaseSelenium{
public static void main(final String[] args){
final SoapUI_T11001_StockConsSecurityCurBusiDate ico = new SoapUI_T11001_StockConsSecurityCurBusiDate();
try{
ico.init("https://avncedevn1.nam.nsroot.net:17620/", false);
}catch(Exception e){
// TODO Auto-generated catch block
e.printStackTrace();
}
ico.execute(null);
}
//...code....
}
how do I solve this error ? I'm not sure what is causing the error.
This work for me:
Press Ctr+Alt+Shift+s
or:
From File menu -> Project Structure -> SDK Location -> JDK location Drop down menu choose:
Embeded JDK c:....\jre
Then ok.
If you using android studio and got this error then I solved it changing the Gradle version of the project to the newest version 6.2.1 on the project structure options.
One of the possible reasons is that the jdk version is too high. For example, using jdk 16 to build the source code of Apache Kafka throws this error. Using jdk 11 is fine.
bild.gradel file in change clashpath
dependencies {
classpath "com.android.tools.build:gradle:7.0.1"
}
gradel-wrapper.properties
distributionUrl=https\://services.gradle.org/distributions/gradle-7.0.2-bin.zip
I'm Using Android Studio - Arctic Fox and this worked for me
Go To File menu -> Project Structure -> SDK Location -> Gradle Setting
Then check the "Download external annotations for dependencies" button and select JDK location from the drop down menu and choose: Android Default Jdk Vesion.
Click on Ok.
If you wanted to make a new project on Android Studio after first install, probably you write your application name including (') sign as called apostrophe.
For Example, I tried to set a name as: "Henry's Game" but apostrophe caused Android Studio to not load because of this mistake:
Caused by: org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
So, just change your application's name, and simply use Latin alphabet languages such as English.
To fix: Go to your Android Project Tree and find Gradle Scripts > settings.gradle > change the name:
rootProject.name='Henry Game'
include ':app'
With Eclipse Juno (Kepler Release) Build id: 20121114-2344, I found similar problem:
org.codehaus.groovy.control.multiplecompilationerrorsexception startup failed unable to resolve class Chart
The class Chart is my container class for some utilities for charting.
I tried outside of Eclipse, with Groovy 2.0 Console the same code segment works fine. After scratching my head for about 3 hours, I resolved it by adding the following
import excel.Chart
in the invoking class with main() that has "new Chart()" thus getting the complaints, once added, the error is gone. Even more weird, after passing the error, I remove that import, there is still no more complaints! (All my scripts/classes are under the same package excel, I suppose such import statement is not needed.)
One of the symptom of the complaints is that there was not Chart.class generated in the output bin folder. Once the complaints gone, Chart.class appeared there.
I guess that it might be a bug of Eclipse/Groovy plugin (I use Groovy Plugin for Juno).
Hope my understanding is correct, and it helps.
The solution for me was change the gradle version and the Gradle JDK:
File > Project Structure > Project
enter image description here
File > Project Structure > SDK Location
enter image description here
Go to Files and click Invalidate caches/ Restart . Android studio will clear the cached and it will be restarted without any error.
Hope this answer helps you :)
For this problem, you might also encounter package naming from gsp as I did. In the build/gsptmp folder, Grails 4.x.x creates temporary gsp files to link the classes that they refer to. Due to the change of a package name it was failing to do so in my case. Try with command grails war --stacktrace during war build!
Previously, it was <%# page import="bv.BankReconciliationController" %>
but the folder bv was renamed to factoring.
So, the solve was to change the import to
<%# page import="factoring.BankReconciliationController" %> and it worked :)
I have also faced the same and tried all of the solution here and other places as well, at last i deleted my .gradle and gradle both folder and caches of android studio and open the studio again and rebuild the project, it's works after that fine and used the latest gradle version and previously it was picking up the older version and causing issues.
for me , solution is to upgrade the gradle to latest version , and remove the .idea file , and invalidate caches and restart android studio.
When starting a project make sure to select SDK version 11 or later. It will default to a minimum SDK but you have to scroll down to a later version for it to work. Then the project should load and build.
For me, I just delete the .grade file under program files(C:\Users\username\ .gradle) in windows and it will work.
This work for me:
From File menu -> Project Structure -> SDK Location -> klik Gradle Setting for show hide menu, Gradle JDK choose:
Embeded JDK c:....\jre
Then ok.
Do you have the grail and groovy plugin installed? If so try uninstalling this plugin. I had the same error message and uninstalling the plugin, restart IDE worked for me.