GWT 2.8 RC2 - An internal compiler exception occurred

[vjay82]

When switching my working GWT 2.7 project to 2.8 RC2 I get this:

  [ERROR] An internal compiler exception occurred

com.google.gwt.dev.jjs.InternalCompilerException: Unexpected error during visit.
at com.google.gwt.dev.jjs.ast.JVisitor.translateException(JVisitor.java:111)
at com.google.gwt.dev.jjs.ast.JModVisitor.accept(JModVisitor.java:276)
at com.google.gwt.dev.jjs.ast.JModVisitor.accept(JModVisitor.java:265)
at com.google.gwt.dev.jjs.ast.JVisitor.accept(JVisitor.java:118)
at com.google.gwt.dev.jjs.ast.JReturnStatement.traverse(JReturnStatement.java:40)
at com.google.gwt.dev.jjs.ast.JModVisitor$ListContext.traverse(JModVisitor.java:88)
at com.google.gwt.dev.jjs.ast.JModVisitor.acceptWithInsertRemove(JModVisitor.java:331)
at com.google.gwt.dev.jjs.ast.JBlock.traverse(JBlock.java:92)
at com.google.gwt.dev.jjs.ast.JModVisitor.traverse(JModVisitor.java:361)
at com.google.gwt.dev.jjs.ast.JModVisitor.accept(JModVisitor.java:273)
at com.google.gwt.dev.jjs.ast.JVisitor.accept(JVisitor.java:139)
at com.google.gwt.dev.jjs.ast.JVisitor.accept(JVisitor.java:135)
at com.google.gwt.dev.jjs.ast.JMethodBody.traverse(JMethodBody.java:83)
at com.google.gwt.dev.jjs.ast.JModVisitor.traverse(JModVisitor.java:361)
at com.google.gwt.dev.jjs.ast.JModVisitor.accept(JModVisitor.java:273)
at com.google.gwt.dev.jjs.ast.JModVisitor.accept(JModVisitor.java:265)
at com.google.gwt.dev.jjs.ast.JMethod.visitChildren(JMethod.java:785)
at com.google.gwt.dev.jjs.ast.JMethod.traverse(JMethod.java:777)
at com.google.gwt.dev.jjs.ast.JModVisitor.traverse(JModVisitor.java:361)
at com.google.gwt.dev.jjs.ast.JModVisitor.accept(JModVisitor.java:273)
at com.google.gwt.dev.jjs.ast.JModVisitor.accept(JModVisitor.java:265)
at com.google.gwt.dev.jjs.impl.UnifyAst.mainLoop(UnifyAst.java:1379)
at com.google.gwt.dev.jjs.impl.UnifyAst.exec(UnifyAst.java:875)
at com.google.gwt.dev.jjs.JavaToJavaScriptCompiler.unifyJavaAst(JavaToJavaScriptCompiler.java:1410)
at com.google.gwt.dev.jjs.JavaToJavaScriptCompiler.constructJavaAst(JavaToJavaScriptCompiler.java:1222)
at com.google.gwt.dev.jjs.JavaToJavaScriptCompiler.precompile(JavaToJavaScriptCompiler.java:1140)
at com.google.gwt.dev.jjs.JavaToJavaScriptCompiler.precompile(JavaToJavaScriptCompiler.java:255)
at com.google.gwt.dev.Precompile.precompile(Precompile.java:255)
at com.google.gwt.dev.Precompile.precompile(Precompile.java:202)
at com.google.gwt.dev.Precompile.precompile(Precompile.java:143)
at com.google.gwt.dev.Compiler.compile(Compiler.java:204)
at com.google.gwt.dev.codeserver.Recompiler.doCompile(Recompiler.java:362)
at com.google.gwt.dev.codeserver.Recompiler.compile(Recompiler.java:175)
at com.google.gwt.dev.codeserver.Recompiler.recompile(Recompiler.java:134)
at com.google.gwt.dev.codeserver.Outbox.recompile(Outbox.java:135)
at com.google.gwt.dev.codeserver.JobRunner.recompile(JobRunner.java:113)
at com.google.gwt.dev.codeserver.JobRunner.access$000(JobRunner.java:37)
at com.google.gwt.dev.codeserver.JobRunner$2.run(JobRunner.java:90)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NoSuchMethodError: java.lang.Object.Object(I)
at com.google.gwt.dev.jjs.impl.UnifyAst.translate(UnifyAst.java:1595)
at com.google.gwt.dev.jjs.impl.UnifyAst.access$1000(UnifyAst.java:131)
at com.google.gwt.dev.jjs.impl.UnifyAst$UnifyVisitor.visit(UnifyAst.java:405)
at com.google.gwt.dev.jjs.ast.JVisitor.visit(JVisitor.java:683)
at com.google.gwt.dev.jjs.ast.JNewInstance.traverse(JNewInstance.java:73)
at com.google.gwt.dev.jjs.ast.JModVisitor.traverse(JModVisitor.java:361)
at com.google.gwt.dev.jjs.ast.JModVisitor.accept(JModVisitor.java:273)
... 41 more
[ERROR] at Stream.java(762): new Object(arg0)
com.google.gwt.dev.jjs.ast.JNewInstance
[ERROR] at Stream.java(762): return new Object(arg0)
com.google.gwt.dev.jjs.ast.JReturnStatement
[ERROR] at Stream.java(762): {
return new Object(arg0);
}
com.google.gwt.dev.jjs.ast.JBlock
[ERROR] at Stream.java(762): {
return new Object(arg0);
}
com.google.gwt.dev.jjs.ast.JMethodBody
[ERROR] at Stream.java(762): java.util.stream.Stream$StreamSource$0methodref$ctor$Type.apply(I)Ljava/lang/Object;
com.google.gwt.dev.jjs.ast.JMethod
[ERROR] Compiler returned false
[WARN] recompile failed
job's progress set to ERROR:

I don't use Maven for reasons, maybe I forgot to download a required jar? ... I would expect another error message then. What I did was: I replaced all GWT files with their new counterparts, switched guava/-gwt to git-master and updated their dependencies as far as I can see.

[rluble]

The error seems to points to a classpath issue. Reopen it if/when you can create a small repro case.

[rsertelon]

Hi, got the same problem here. Can't figure out what would cause the issue yet.

This only happens with SuperDevMode.

[tbroyer]

@rluble It looks like, for some reason, the compiler maps Object[]::new (at https://github.com/gwtproject/gwt/blob/2.8.0-rc2/user/super/com/google/gwt/emul/java/util/stream/Stream.java#L762; taking an int argument) to Object::new (which does not exist, hence the NoSuchMethodError).

@rsertelon Is this is the exact same error? Can you create a small repro case? or maybe it's in an opensource project?

[rsertelon]

@tbroyer Same error yes. However, not sure I can create a simple reproduction case. What would generate such confusion for the compiler? Another implementation of Stream.java ?

[rsertelon]

I've just checked another thing or two.

• When compile with maven (gwt-maven-plugin with gwt:compiler), it compiles without error.
• When running codeserver with maven (gwt-maven-plugin with gwt:run-codeserver), it starts, but complains on first compilation with above error.

I've compared the classpaths, they are identical for the call to gwt-maven-plugin (be it with compile or run-codeserver).

So, AFAIC, it does not seem to be a classpath problem.

[rsertelon]

Just tried to isolate the problem for the last hour, but couldn't. I'm afraid I can't really spend more time on this issue, if I find some, I'll post more information.

[vjay82]

I saw in your profile that you have a lot of OS projects. As tbroyer asked, is this one? If yes, in my opinion how small small is, is debatable. If I were you I would zip it together and attach it.

[rsertelon]

Nope, not an OSS project, a proprietary one. I tried to tear the project down to the problem, but without success as said above :)

[rluble]

I'll have a look. BTW If you are using the snapshot you should be seeing a different error. UnifyAst no longer throws NoSuchMethodException (see f4ce942).

[rsertelon]

Hi, I've tried today with rc3, and no more luck, although it's not the same method that is missing now:

[INFO] [ERROR] An internal compiler exception occurred
[INFO] com.google.gwt.dev.jjs.InternalCompilerException: Error constructing Java AST
[INFO]  at com.google.gwt.dev.jjs.impl.GwtAstBuilder.translateException(GwtAstBuilder.java:3944)
[INFO]  at com.google.gwt.dev.jjs.impl.GwtAstBuilder$AstVisitor.endVisit(GwtAstBuilder.java:1567)
[INFO]  at org.eclipse.jdt.internal.compiler.ast.MessageSend.traverse(MessageSend.java:1021)
[INFO]  at org.eclipse.jdt.internal.compiler.ast.MessageSend.traverse(MessageSend.java:1018)
[INFO]  at org.eclipse.jdt.internal.compiler.ast.ReturnStatement.traverse(ReturnStatement.java:373)
[INFO]  at org.eclipse.jdt.internal.compiler.ast.MethodDeclaration.traverse(MethodDeclaration.java:347)
[INFO]  at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.traverse(TypeDeclaration.java:1379)
[INFO]  at com.google.gwt.dev.jjs.impl.GwtAstBuilder.processImpl(GwtAstBuilder.java:3887)
[INFO]  at com.google.gwt.dev.jjs.impl.GwtAstBuilder.process(GwtAstBuilder.java:3918)
[INFO]  at com.google.gwt.dev.javac.CompilationStateBuilder$CompileMoreLater$UnitProcessorImpl.process(CompilationStateBuilder.java:129)
[INFO]  at com.google.gwt.dev.javac.JdtCompiler$CompilerImpl.process(JdtCompiler.java:384)
[INFO]  at org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:470)
[INFO]  at com.google.gwt.dev.javac.JdtCompiler.doCompile(JdtCompiler.java:1092)
[INFO]  at com.google.gwt.dev.javac.CompilationStateBuilder$CompileMoreLater.compile(CompilationStateBuilder.java:325)
[INFO]  at com.google.gwt.dev.javac.CompilationStateBuilder.doBuildFrom(CompilationStateBuilder.java:548)
[INFO]  at com.google.gwt.dev.javac.CompilationStateBuilder.buildFrom(CompilationStateBuilder.java:479)
[INFO]  at com.google.gwt.dev.javac.CompilationStateBuilder.buildFrom(CompilationStateBuilder.java:465)
[INFO]  at com.google.gwt.dev.cfg.ModuleDef.getCompilationState(ModuleDef.java:423)
[INFO]  at com.google.gwt.dev.Precompile.precompile(Precompile.java:222)
[INFO]  at com.google.gwt.dev.Precompile.precompile(Precompile.java:202)
[INFO]  at com.google.gwt.dev.Precompile.precompile(Precompile.java:143)
[INFO]  at com.google.gwt.dev.Compiler.compile(Compiler.java:204)
[INFO]  at com.google.gwt.dev.Compiler.compile(Compiler.java:155)
[INFO]  at com.google.gwt.dev.Compiler.compile(Compiler.java:144)
[INFO]  at com.google.gwt.dev.Compiler$1.run(Compiler.java:118)
[INFO]  at com.google.gwt.dev.CompileTaskRunner.doRun(CompileTaskRunner.java:55)
[INFO]  at com.google.gwt.dev.CompileTaskRunner.runWithAppropriateLogger(CompileTaskRunner.java:50)
[INFO]  at com.google.gwt.dev.Compiler.main(Compiler.java:125)
[INFO] Caused by: java.lang.NoSuchMethodError: org.eclipse.jdt.internal.compiler.ast.MessageSend.binding()Lorg/eclipse/jdt/internal/compiler/lookup/MethodBinding;
[INFO]  at com.google.gwt.dev.jjs.impl.GwtAstBuilder.isUncheckedGenericMethodCall(GwtAstBuilder.java:4167)
[INFO]  at com.google.gwt.dev.jjs.impl.GwtAstBuilder.access$1400(GwtAstBuilder.java:249)
[INFO]  at com.google.gwt.dev.jjs.impl.GwtAstBuilder$AstVisitor.endVisit(GwtAstBuilder.java:1560)
[INFO]  ... 26 more
[INFO]    [ERROR] at ListBox.java(246): getSelectElement().getOptions().getItem(index)
[INFO]       org.eclipse.jdt.internal.compiler.ast.MessageSend

And this time it appears at compilation time.

I'm using ECJ in my build for our JSP compilation, could it be linked? I can't see any dependency on ECJ in GWT (in maven dependencies), do you have a dependency on ECJ, and if so, which version?

Thanks,

Edit: It seems that you have a custom version of ECJ 3.11.2 for gwt-dev.jar. In my project, as we're using java8, I use 4.4.2. This wasn't a problem in 2.8.0-beta1, so maybe it has no link to the underlying issue at all ;)

[tbroyer]

I'm using ECJ in my build for our JSP compilation, could it be linked?

Probably.
This is one reason you should separate client-side and server-side code into separate Maven modules; though in the short term there may be ways around it using <scope> (setting your ECJ to <scope>runtime</scope> for example to exclude it from GWT's classpath); and if you use the org.codehaus.mojo:gwt-maven-plugin plugin, possibly with gwtSdkFirstInClasspath (to make sure you'll use GWT's ECJ)

[rsertelon]

It compiles fine with the runtime scope (still don't know how I could let it slip ;)). Both with gwt-maven-plugin and SDM via Eclipse. Thanks for your help @tbroyer !

Edit: Oops, I might have not tested it correctly (forgot some stash in git) Will post results ASAP.
Edit2: Confirmation, it works fine ;)

[jeslinedias]

Hi I have a very similar error but on a different class, I dont use any explicit ECJ. Do i have to disable it ? how ? What might be the rootcause of my issue ?
I upgraded my gwt from 2.5 to 2.8
gwt-maven-plugin:2.8.0:compile (default) @ SeviS4Web [ERROR] Jun 22, 2017 1:16:06 PM java.util.prefs.WindowsPreferences <init> [ERROR] WARNING: Could not open/create prefs root node Software\JavaSoft\Prefs at root 0x80000002. Windows RegCreateKeyEx(...) returned error code 5.
[INFO] Loading inherited module 'com.sevi.web.SEWeb'`

All the modules got loaded Then the below log and the errror

Public resources found in... [INFO] Translatable source found in... [INFO] Persistent unit cache dir set to: C:\Jesline\Project_Linux\target\gwt-unitCache [INFO] Opening cache file: C:\Jesline\Project_Linux\target\gwt-unitCache\gwt-unitCache-f160a61272c5ebe805cd2d3d3256ed3ecf14893f-0000015CD0B5FBB0 [INFO] Looking for previously cached Compilation Units in C:\Jesline\Project_Linux\target\gwt-unitCache [INFO] Compiling module com.citi.sevi.web.SEWeb [INFO] Found 0 cached/archived units. Used 0 / 5180 units from cache. [INFO] Compiling... [INFO] [ERROR] An internal compiler exception occurred [INFO] com.google.gwt.dev.jjs.InternalCompilerException: Error constructing Java AST [INFO] at com.google.gwt.dev.jjs.impl.GwtAstBuilder.translateException(GwtAstBuilder.java:3944) [INFO] at com.google.gwt.dev.jjs.impl.GwtAstBuilder.getInternalCompilerException(GwtAstBuilder.java:4351) [INFO] at com.google.gwt.dev.jjs.impl.GwtAstBuilder.createMembers(GwtAstBuilder.java:4043) [INFO] at com.google.gwt.dev.jjs.impl.GwtAstBuilder.createMembers(GwtAstBuilder.java:4039) [INFO] at com.google.gwt.dev.jjs.impl.GwtAstBuilder.processImpl(GwtAstBuilder.java:3883) [INFO] at com.google.gwt.dev.jjs.impl.GwtAstBuilder.process(GwtAstBuilder.java:3918) [INFO] at com.google.gwt.dev.javac.CompilationStateBuilder$CompileMoreLater$UnitProcessorImpl.process(CompilationStateBuilder.java:129) [INFO] at com.google.gwt.dev.javac.JdtCompiler$CompilerImpl.process(JdtCompiler.java:384) [INFO] at org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:470) [INFO] at com.google.gwt.dev.javac.JdtCompiler.doCompile(JdtCompiler.java:1092) [INFO] at com.google.gwt.dev.javac.CompilationStateBuilder$CompileMoreLater.compile(CompilationStateBuilder.java:325) [INFO] at com.google.gwt.dev.javac.CompilationStateBuilder.doBuildFrom(CompilationStateBuilder.java:548) [INFO] at com.google.gwt.dev.javac.CompilationStateBuilder.buildFrom(CompilationStateBuilder.java:479) [INFO] at com.google.gwt.dev.javac.CompilationStateBuilder.buildFrom(CompilationStateBuilder.java:465) [INFO] at com.google.gwt.dev.cfg.ModuleDef.getCompilationState(ModuleDef.java:423) [INFO] at com.google.gwt.dev.Precompile.precompile(Precompile.java:222) [INFO] at com.google.gwt.dev.Precompile.precompile(Precompile.java:202) [INFO] at com.google.gwt.dev.Precompile.precompile(Precompile.java:143) [INFO] at com.google.gwt.dev.Compiler.compile(Compiler.java:204) [INFO] at com.google.gwt.dev.Compiler.compile(Compiler.java:155) [INFO] at com.google.gwt.dev.Compiler.compile(Compiler.java:144) [INFO] at com.google.gwt.dev.Compiler$1.run(Compiler.java:118) [INFO] at com.google.gwt.dev.CompileTaskRunner.doRun(CompileTaskRunner.java:55) [INFO] at com.google.gwt.dev.CompileTaskRunner.runWithAppropriateLogger(CompileTaskRunner.java:50) [INFO] at com.google.gwt.dev.Compiler.main(Compiler.java:125) [INFO] Caused by: java.lang.NoSuchMethodError: org.eclipse.jdt.internal.compiler.lookup.MethodBinding.isDefaultMethod()Z [INFO] at com.google.gwt.dev.jjs.impl.GwtAstBuilder.createMethod(GwtAstBuilder.java:4138) [INFO] at com.google.gwt.dev.jjs.impl.GwtAstBuilder.createMembers(GwtAstBuilder.java:4033) [INFO] ... 22 more [INFO] [ERROR] at CustomDateTimeFormat.java(41): public @interface Pattern [INFO] org.eclipse.jdt.internal.compiler.ast.TypeDeclaration [INFO] [ERROR] at CustomDateTimeFormat.java(28): public interface CustomDateTimeFormat extends com.google.gwt.i18n.shared.CustomDateTimeFormat [INFO] org.eclipse.jdt.internal.compiler.ast.TypeDeclaration [INFO] Closing cache file: C:\Jesline\Project_Linux\target\gwt-unitCache\gwt-unitCache-f160a61272c5ebe805cd2d3d3256ed3ecf14893f-0000015CD0B5FBB0 (0 units written) [INFO] Deleting empty file: C:\Jesline\Project_Linux\target\gwt-unitCache\gwt-unitCache-f160a61272c5ebe805cd2d3d3256ed3ecf14893f-0000015CD0B5FBB0 [INFO] Shutting down PersistentUnitCache thread [INFO] Shutting down PersistentUnitCache thread

[tbroyer]

Check your classpath (mvn dependency:tree), this is a similar issue.

[jeslinedias]

What should i be looking for from the dependency tree ? Below is my dependency tree.

[INFO] +- org.apache.commons:commons-csv:jar:1.1:compile [INFO] +- org.springframework:spring-aop:jar:4.2.9.RELEASE:compile [INFO] +- org.springframework:spring-beans:jar:4.2.9.RELEASE:compile [INFO] +- org.springframework:spring-context:jar:4.2.9.RELEASE:compile [INFO] +- org.springframework:spring-context-support:jar:4.2.9.RELEASE:compile [INFO] +- org.springframework:spring-core:jar:4.2.9.RELEASE:compile [INFO] +- org.springframework:spring-expression:jar:4.2.9.RELEASE:compile [INFO] +- org.springframework:spring-jdbc:jar:4.2.9.RELEASE:compile [INFO] +- org.springframework:spring-jms:jar:4.2.9.RELEASE:compile [INFO] | \- org.springframework:spring-messaging:jar:4.2.9.RELEASE:compile [INFO] +- org.springframework:spring-orm:jar:4.2.9.RELEASE:compile [INFO] +- org.springframework.security:spring-security-config:jar:4.2.2.RELEASE:compile [INFO] +- org.springframework.security:spring-security-core:jar:4.2.2.RELEASE:compile [INFO] +- org.springframework.security:spring-security-web:jar:4.2.2.RELEASE:compile [INFO] +- org.springframework:spring-tx:jar:4.2.9.RELEASE:compile [INFO] +- org.springframework:spring-web:jar:4.2.9.RELEASE:compile [INFO] +- org.springframework:spring-webmvc:jar:4.2.9.RELEASE:compile [INFO] +- org.springframework:spring-test:jar:4.2.9.RELEASE:test [INFO] +- org.hibernate:hibernate-core:jar:5.1.0.Final:compile [INFO] | +- org.hibernate.javax.persistence:hibernate-jpa-2.1-api:jar:1.0.0.Final:compile [INFO] | +- org.javassist:javassist:jar:3.18.1-GA:compile [INFO] | +- org.apache.geronimo.specs:geronimo-jta_1.1_spec:jar:1.1.1:compile [INFO] | +- org.jboss:jandex:jar:2.0.0.Final:compile [INFO] | \- com.fasterxml:classmate:jar:1.3.0:compile [INFO] +- org.hibernate.common:hibernate-commons-annotations:jar:5.0.0.Final:compile [INFO] +- org.hibernate:hibernate-entitymanager:jar:5.1.0.Final:compile [INFO] +- org.hibernate:hibernate-validator-annotation-processor:jar:4.3.0.Final:compile [INFO] +- org.hibernate:hibernate-c3p0:jar:5.1.0.Final:compile [INFO] | \- com.mchange:c3p0:jar:0.9.2-pre5:compile [INFO] | \- com.mchange:mchange-commons-java:jar:0.2.3:compile [INFO] +- com.google.gwt:gwt-user:jar:2.8.0:provided [INFO] | +- com.google.jsinterop:jsinterop-annotations:jar:1.0.1:provided [INFO] | +- com.google.jsinterop:jsinterop-annotations:jar:sources:1.0.1:provided [INFO] | \- org.w3c.css:sac:jar:1.3:provided [INFO] +- com.google.gwt:gwt-servlet:jar:2.8.0:runtime [INFO] +- javax.validation:validation-api:jar:1.0.0.GA:test [INFO] +- javax.validation:validation-api:jar:sources:1.0.0.GA:test [INFO] +- com.google.gwt.gwtmockito:gwtmockito:jar:1.1.5:test [INFO] | +- com.google.gwt:gwt-dev:jar:2.7.0:test [INFO] | | +- org.ow2.asm:asm-util:jar:5.0.3:test [INFO] | | | \- org.ow2.asm:asm-tree:jar:5.0.3:test [INFO] | | \- org.ow2.asm:asm-commons:jar:5.0.3:test [INFO] | \- org.mockito:mockito-all:jar:1.9.5:test [INFO] +- org.apache.activemq:activemq-all:jar:5.8.0:compile [INFO] | \- org.apache.activemq:activemq-amqp:jar:5.8.0:compile [INFO] | +- org.apache.activemq:activemq-broker:jar:5.8.0:compile [INFO] | | +- org.apache.activemq:activemq-client:jar:5.8.0:compile [INFO] | | | +- org.apache.geronimo.specs:geronimo-jms_1.1_spec:jar:1.1.1:compile [INFO] | | | \- org.apache.geronimo.specs:geronimo-j2ee-management_1.1_spec:jar:1.0.1:compile [INFO] | | \- org.apache.activemq:activemq-openwire-legacy:jar:5.8.0:compile [INFO] | +- org.apache.qpid:proton-jms:jar:0.3.0-fuse-2:compile [INFO] | | \- org.apache.qpid:proton:jar:0.3.0-fuse-2:compile [INFO] | | +- org.apache.qpid:proton-api:jar:0.3.0-fuse-2:compile [INFO] | | \- org.bouncycastle:bcpkix-jdk15on:jar:1.47:compile [INFO] | | \- org.bouncycastle:bcprov-jdk15on:jar:1.47:compile [INFO] | \- org.fusesource.hawtbuf:hawtbuf:jar:1.9:compile [INFO] +- org.apache.commons:commons-lang3:jar:3.3.2:compile [INFO] +- antlr:antlr:jar:2.7.7:compile [INFO] +- org.antlr:antlr-runtime:jar:3.5:compile [INFO] +- aopalliance:aopalliance:jar:1.0:compile [INFO] +- org.ow2.asm:asm:jar:5.0.3:compile [INFO] +- cglib:cglib:jar:2.2:compile [INFO] | \- asm:asm:jar:3.3.1:compile [INFO] +- commons-beanutils:commons-beanutils:jar:sources:1.9.2:compile [INFO] +- commons-codec:commons-codec:jar:1.10:compile [INFO] +- commons-collections:commons-collections:jar:3.1:compile [INFO] +- commons-fileupload:commons-fileupload:jar:1.3.1:compile [INFO] +- commons-io:commons-io:jar:2.4:compile [INFO] +- commons-logging:commons-logging:jar:1.2:compile [INFO] +- dom4j:dom4j:jar:1.6.1:compile [INFO] +- javax.el:el-api:jar:2.2:compile [INFO] +- javax.mail:mail:jar:1.4.3:compile [INFO] | \- javax.activation:activation:jar:1.1.1:compile [INFO] +- org.apache.velocity:velocity:jar:1.7:compile [INFO] +- com.google.guava:guava:jar:18.0:compile [INFO] +- javax.jms:jms:jar:1.1:compile [INFO] +- org.jboss.logging:jboss-logging:jar:3.3.0.Final:compile [INFO] +- javax.transaction:jta:jar:1.1:compile [INFO] +- au.com.bytecode:opencsv:jar:2.4:compile [INFO] +- org.tmatesoft.svnkit:svnkit:jar:1.8.7:compile [INFO] | +- com.jcraft:jsch.agentproxy.svnkit-trilead-ssh2:jar:0.0.7:compile [INFO] | | \- com.jcraft:jsch.agentproxy.core:jar:0.0.7:compile [INFO] | +- net.java.dev.jna:jna-platform:jar:4.1.0:compile [INFO] | +- net.java.dev.jna:jna:jar:4.1.0:compile [INFO] | +- com.trilead:trilead-ssh2:jar:1.0.0-build217:compile [INFO] | +- com.jcraft:jsch.agentproxy.connector-factory:jar:0.0.7:compile [INFO] | | +- com.jcraft:jsch.agentproxy.usocket-jna:jar:0.0.7:compile [INFO] | | | \- net.java.dev.jna:platform:jar:3.4.0:compile [INFO] | | +- com.jcraft:jsch.agentproxy.usocket-nc:jar:0.0.7:compile [INFO] | | +- com.jcraft:jsch.agentproxy.sshagent:jar:0.0.7:compile [INFO] | | \- com.jcraft:jsch.agentproxy.pageant:jar:0.0.7:compile [INFO] | \- de.regnis.q.sequence:sequence-library:jar:1.0.3:compile [INFO] +- org.apache.poi:poi:jar:3.10-FINAL:compile [INFO] +- org.apache.poi:poi-ooxml:jar:3.10-FINAL:compile [INFO] +- org.apache.poi:poi-ooxml-schemas:jar:3.10-FINAL:compile [INFO] +- com.isomorphic.smartgwt.lgpl:smartgwt-lgpl:jar:6.0-p20170618:compile [INFO] +- com.isomorphic.smartgwt.lgpl:smartgwt-skins:jar:6.0-p20170618:compile [INFO] +- com.oracle:ojdbc6:jar:11.2.0.3:provided [INFO] +- org.tmatesoft.sqljet:sqljet:jar:1.1.10:compile [INFO] +- org.apache.xmlbeans:xmlbeans:jar:2.3.0:compile [INFO] | \- stax:stax-api:jar:1.0.1:compile [INFO] +- javax.servlet:javax.servlet-api:jar:3.1.0:compile [INFO] +- org.antlr:ST4:jar:4.0.7:compile [INFO] +- junit:junit:jar:4.12:test [INFO] | \- org.hamcrest:hamcrest-core:jar:1.3:test [INFO] +- org.eclipse:org.eclipse.bpmn2:jar:0.7.3:compile [INFO] +- org.eclipse.emf:org.eclipse.emf.common:jar:2.11.0-v20150123-0347:compile [INFO] +- org.eclipse.emf:org.eclipse.emf.ecore:jar:2.11.0-v20150123-0347:compile [INFO] +- org.eclipse.emf:org.eclipse.emf.ecore.xmi:jar:2.11.0-v20150123-0347:compile [INFO] +- commons-lang:commons-lang:jar:2.6:compile [INFO] +- org.codehaus.jackson:jackson-core-asl:jar:1.9.13:compile [INFO] +- org.codehaus.jackson:jackson-xc:jar:1.9.12:compile [INFO] | \- org.codehaus.jackson:jackson-mapper-asl:jar:1.9.9:compile [INFO] +- org.jbpm:jbpm-bpmn2-emfextmodel:jar:6.3.0.Beta1:compile [INFO] +- org.jbpm:jbpm-bpmn2:jar:6.3.0.Beta1:compile [INFO] | \- org.drools:drools-compiler:jar:6.3.0.Beta1:compile [INFO] | +- org.eclipse.jdt.core.compiler:ecj:jar:4.3.1:compile [INFO] | \- com.thoughtworks.xstream:xstream:jar:1.4.7:compile [INFO] | +- xmlpull:xmlpull:jar:1.1.3.1:compile [INFO] | \- xpp3:xpp3_min:jar:1.1.4c:compile [INFO] +- org.drools:drools-core:jar:6.3.0.Beta1:compile [INFO] +- org.drools:drools-decisiontables:jar:6.3.0.Beta1:compile [INFO] | \- org.drools:drools-templates:jar:6.3.0.Beta1:compile [INFO] +- org.jbpm:jbpm-flow-builder:jar:6.3.0.Beta1:compile [INFO] +- org.jbpm:jbpm-flow:jar:6.3.0.Beta1:compile [INFO] | \- com.google.protobuf:protobuf-java:jar:2.5.0:compile [INFO] +- org.kie:kie-api:jar:6.3.0.Beta1:compile [INFO] +- org.kie:kie-internal:jar:6.3.0.Beta1:compile [INFO] +- org.kie.uberfire:i18n-taglib:jar:6.3.0.Beta1:compile [INFO] +- org.osgi:org.osgi.core:jar:4.2.0:compile [INFO] +- org.osgi:org.osgi.compendium:jar:4.2.0:compile [INFO] +- commons-httpclient:commons-httpclient:jar:3.1:compile [INFO] +- org.json:json:jar:20090211:compile [INFO] +- com.googlecode.json-simple:json-simple:jar:1.1:compile [INFO] +- joda-time:joda-time:jar:2.7:compile [INFO] +- org.mvel:mvel2:jar:2.2.4.Final:compile [INFO] +- com.acxiom.solvitur4:AcxiomADAuth:jar:1.0.2:compile [INFO] +- org.apache.xmlgraphics:xmlgraphics-commons:jar:1.5:compile [INFO] +- batik:batik-parser:jar:1.6:compile [INFO] +- batik:batik-transcoder:jar:1.6:compile [INFO] +- batik:batik-extension:jar:1.6:compile [INFO] +- batik:batik-dom:jar:1.6:compile [INFO] +- batik:batik-xml:jar:1.6:compile [INFO] +- batik:batik-bridge:jar:1.6:compile [INFO] +- batik:batik-css:jar:1.6:compile [INFO] +- batik:batik-svg-dom:jar:1.6:compile [INFO] +- batik:batik-svggen:jar:1.6:compile [INFO] +- batik:batik-util:jar:1.6:compile [INFO] +- batik:batik-ext:jar:1.6:compile [INFO] +- batik:batik-script:jar:1.6:compile [INFO] +- batik:batik-gvt:jar:1.6:compile [INFO] +- batik:batik-awt-util:jar:1.6:compile [INFO] +- org.apache.xmlgraphics:fop:jar:0.93:compile [INFO] +- org.apache.avalon.framework:avalon-framework-api:jar:4.3.1:compile [INFO] +- org.apache.avalon.framework:avalon-framework-impl:jar:4.3.1:compile [INFO] +- xerces:xercesImpl:jar:2.11.0:compile [INFO] +- xml-apis:xml-apis:jar:1.4.01:compile [INFO] +- com.google.code.gson:gson:jar:2.3.1:compile [INFO] +- org.xerial:sqlite-jdbc:jar:3.8.7:compile [INFO] +- net.sourceforge.dynamicreports:dynamicreports-adhoc:jar:4.0.1:compile [INFO] | \- net.sourceforge.dynamicreports:dynamicreports-core:jar:4.0.1:compile [INFO] | +- net.sf.jasperreports:jasperreports:jar:6.1.0:compile [INFO] | | +- commons-beanutils:commons-beanutils:jar:1.9.0:compile [INFO] | | +- commons-digester:commons-digester:jar:1.8:compile [INFO] | | +- com.lowagie:itext:jar:2.1.2:compile [INFO] | | +- jfree:jcommon:jar:1.0.15:compile [INFO] | | +- jfree:jfreechart:jar:1.0.12:compile [INFO] | | +- com.fasterxml.jackson.core:jackson-core:jar:2.4.0:compile [INFO] | | +- com.fasterxml.jackson.core:jackson-databind:jar:2.4.0:compile [INFO] | | \- com.fasterxml.jackson.core:jackson-annotations:jar:2.1.4:compile [INFO] | \- net.sf.barcode4j:barcode4j:jar:2.0:compile [INFO] | \- avalon-framework:avalon-framework-impl:jar:4.2.0:compile [INFO] \- com.citi.s4.util:S4UtilJDBCHelper:jar:1.7.0:compile [INFO] +- org.xerial:sqlite-jdbc-with-aix:jar:3.8.7:compile [INFO] +- org.apache.derby:derby:jar:10.7.1.1:compile [INFO] \- joda-time:joda-time-hibernate:jar:1.4:compile (version selected from constraint [1.3,2.0)) [INFO] ------------------------------------------------------------------------ [INFO] BUILD SUCCESS [INFO] ------------------------------------------------------------------------ [INFO] Total time: 12.036 s [INFO] Finished at: 2017-06-22T14:22:35-05:00 [INFO] Final Memory: 29M/329M

[tbroyer]

org.eclipse.jdt.core.compiler:ecj:jar:4.3.1:compile most probably.

As said above, split your client and server code into separate modules to avoid such clashes. (there might be workarounds, as suggested above, but they're just that: workarounds)

Ask on the Google Group (or Stackoverflow) if you need help doing so.