Thomas, Thanks a lot for your response. I am using JDK1.6. I am also new to GWT.
1) Can you please help me how & where to add *-Dgwt.usearchives=false* ? 2) Are you suggesting me to use GWT 2.8 instead of 2.7 now? Thanks in advance. On Friday, January 16, 2015 at 4:15:32 AM UTC-5, Thomas Broyer wrote: > > What JDK are you using? If you're not using OpenJDK or Oracle's JDK (e.g. > IBM JDK), then add -Dgwt.usearchives=false. > > Note: GWT 2.8 will remove the "gwtar" (which are serialized precompilation > state) so it should hopefully work out of the box with any JDK. > > On Thursday, January 15, 2015 at 9:42:51 PM UTC+1, ssg wrote: >> >> I am getting the following error while performing Ant Build. >> *Can someone please help me ?* >> >> Compiling module com.acg.mmsea.gwt.Appname >> [java] [WARN] Unable to read: >> jar:file:/C:/gwt-2.7.0/gwt-user.jar!/com/google/gwt/core/Core.gwtar. >> Skipping: java.io.InvalidClassException: >> com.google.gwt.dev.jjs.SourceOrigin$1; local class incompatible: stream >> classdesc serialVersionUID = -2407201776821563037, local class >> serialVersionUID = 4713379764594032837 >> [java] [WARN] Unable to read: >> jar:file:/C:/gwt-2.7.0/gwt-user.jar!/com/google/gwt/user/User.gwtar. >> Skipping: java.io.InvalidClassException: >> com.google.gwt.dev.jjs.SourceOrigin$1; local class incompatible: stream >> classdesc serialVersionUID = -2407201776821563037, local class >> serialVersionUID = 4713379764594032837 >> [java] [WARN] Unable to read: >> jar:file:/C:/gwt-2.7.0/gwt-user.jar!/com/google/gwt/user/UI.gwtar. >> Skipping: java.io.InvalidClassException: >> com.google.gwt.dev.jjs.SourceOrigin$1; local class incompatible: stream >> classdesc serialVersionUID = -2407201776821563037, local class >> serialVersionUID = 4713379764594032837 >> [java] [WARN] Unable to read: >> jar:file:/C:/gwt-2.7.0/gwt-user.jar!/com/google/gwt/user/DOM.gwtar. >> Skipping: java.io.InvalidClassException: >> com.google.gwt.dev.jjs.SourceOrigin$1; local class incompatible: stream >> classdesc serialVersionUID = -2407201776821563037, local class >> serialVersionUID = 4713379764594032837 >> [java] [WARN] Unable to read: >> jar:file:/C:/gwt-2.7.0/gwt-user.jar!/com/google/gwt/user/RemoteService.gwtar. >> >> Skipping: java.io.InvalidClassException: >> com.google.gwt.dev.jjs.SourceOrigin$1; local class incompatible: stream >> classdesc serialVersionUID = -2407201776821563037, local class >> serialVersionUID = 4713379764594032837 >> [java] [WARN] Unable to read: >> jar:file:/C:/gwt-2.7.0/gwt-user.jar!/com/google/gwt/xml/XML.gwtar. >> Skipping: java.io.InvalidClassException: >> com.google.gwt.dev.jjs.SourceOrigin$1; local class incompatible: stream >> classdesc serialVersionUID = -2407201776821563037, local class >> serialVersionUID = 4713379764594032837 >> [java] Ignored 2 units with compilation errors in first pass. >> >> [ERROR] Unexpected internal compiler error >> [java] java.lang.RuntimeException: Unexpected IOException on >> in-memory stream >> [java] at >> com.google.gwt.dev.javac.CompilationUnit.getTypes(CompilationUnit.java:383) >> [java] at >> com.google.gwt.dev.jjs.impl.UnifyAst.assimilateSourceUnit(UnifyAst.java:999) >> [java] at >> com.google.gwt.dev.jjs.impl.UnifyAst.internalFindType(UnifyAst.java:1595) >> [java] at >> com.google.gwt.dev.jjs.impl.UnifyAst.translate(UnifyAst.java:1653) >> [java] at >> com.google.gwt.dev.jjs.impl.UnifyAst.translate(UnifyAst.java:1645) >> [java] at >> com.google.gwt.dev.jjs.impl.UnifyAst.resolveType(UnifyAst.java:1552) >> [java] at >> com.google.gwt.dev.jjs.impl.UnifyAst.assimilateSourceUnit(UnifyAst.java:1010) >> [java] at >> com.google.gwt.dev.jjs.impl.UnifyAst.internalFindType(UnifyAst.java:1595) >> [java] at >> com.google.gwt.dev.jjs.impl.UnifyAst.translate(UnifyAst.java:1653) >> [java] at >> com.google.gwt.dev.jjs.impl.UnifyAst.translate(UnifyAst.java:1645) >> [java] at >> com.google.gwt.dev.jjs.impl.UnifyAst.resolveType(UnifyAst.java:1552) >> [java] at >> com.google.gwt.dev.jjs.impl.UnifyAst.assimilateSourceUnit(UnifyAst.java:1010) >> [java] at >> com.google.gwt.dev.jjs.impl.UnifyAst.internalFindType(UnifyAst.java:1595) >> [java] at >> com.google.gwt.dev.jjs.impl.UnifyAst.translate(UnifyAst.java:1653) >> [java] at >> com.google.gwt.dev.jjs.impl.UnifyAst.translate(UnifyAst.java:1645) >> [java] at >> com.google.gwt.dev.jjs.impl.UnifyAst.resolveType(UnifyAst.java:1552) >> [java] at >> com.google.gwt.dev.jjs.impl.UnifyAst.assimilateSourceUnit(UnifyAst.java:1010) >> [java] at >> com.google.gwt.dev.jjs.impl.UnifyAst.internalFindType(UnifyAst.java:1595) >> [java] at >> com.google.gwt.dev.jjs.impl.UnifyAst.addRootTypes(UnifyAst.java:733) >> [java] at >> com.google.gwt.dev.jjs.JavaToJavaScriptCompiler$Precompiler.unifyJavaAst(JavaToJavaScriptCompiler.java:1291) >> [java] at >> com.google.gwt.dev.jjs.JavaToJavaScriptCompiler$Precompiler.constructJavaAst(JavaToJavaScriptCompiler.java:1038) >> [java] at >> com.google.gwt.dev.jjs.JavaToJavaScriptCompiler$Precompiler.precompile(JavaToJavaScriptCompiler.java:954) >> [java] at >> com.google.gwt.dev.jjs.MonolithicJavaToJavaScriptCompiler.precompile(MonolithicJavaToJavaScriptCompiler.java:303) >> [java] at >> com.google.gwt.dev.jjs.JavaScriptCompiler.precompile(JavaScriptCompiler.java:38) >> [java] at >> com.google.gwt.dev.Precompile.precompile(Precompile.java:286) >> [java] at >> com.google.gwt.dev.Precompile.precompile(Precompile.java:229) >> [java] at >> com.google.gwt.dev.Precompile.precompile(Precompile.java:145) >> [java] at com.google.gwt.dev.Compiler.run(Compiler.java:206) >> [java] at com.google.gwt.dev.Compiler.run(Compiler.java:158) >> [java] at com.google.gwt.dev.Compiler$1.run(Compiler.java:120) >> [java] at >> com.google.gwt.dev.CompileTaskRunner.doRun(CompileTaskRunner.java:55) >> [java] at >> com.google.gwt.dev.CompileTaskRunner.runWithAppropriateLogger(CompileTaskRunner.java:50) >> [java] at com.google.gwt.dev.Compiler.main(Compiler.java:127) >> [java] Caused by: java.io.InvalidClassException: >> com.google.gwt.dev.jjs.SourceOrigin$1; local class incompatible: stream >> classdesc serialVersionUID = -2407201776821563037, local class >> serialVersionUID = 4713379764594032837 >> [java] at >> java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:619) >> [java] at >> java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1606) >> [java] at >> java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1501) >> [java] at >> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755) >> [java] at >> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1334) >> [java] at >> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1976) >> [java] at >> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1900) >> [java] at >> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1782) >> [java] at >> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1334) >> [java] at >> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1976) >> [java] at >> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1900) >> [java] at >> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1782) >> [java] at >> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1334) >> [java] at >> java.io.ObjectInputStream.readObject(ObjectInputStream.java:353) >> [java] at java.util.ArrayList.readObject(ArrayList.java:731) >> [java] at sun.reflect.GeneratedMethodAccessor23.invoke(Unknown >> Source) >> [java] at >> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) >> [java] at java.lang.reflect.Method.invoke(Method.java:600) >> [java] at >> java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1028) >> [java] at >> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1878) >> [java] at >> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1782) >> [java] at >> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1334) >> [java] at >> java.io.ObjectInputStream.readObject(ObjectInputStream.java:353) >> [java] at >> com.google.gwt.dev.jjs.ast.JDeclaredType.readMembers(JDeclaredType.java:412) >> [java] at >> com.google.gwt.dev.jjs.ast.JProgram.deserializeTypes(JProgram.java:229) >> [java] at >> com.google.gwt.dev.javac.CompilationUnit.getTypes(CompilationUnit.java:381) >> [java] ... 32 more >> >> BUILD FAILED >> C:\APPNAME WrkSpc\AppName\build.xml:65: Java returned: 1 >> > -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. 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