[INFO] java.lang.RuntimeException: Unexpected IOException on in-memory stream
[INFO] at com.google.gwt.dev.javac.CompilationUnit.getTypes(CompilationUnit.java:324)
[INFO] at com.google.gwt.dev.jjs.impl.UnifyAst.assimilateUnit(UnifyAst.java:672)
[INFO] at com.google.gwt.dev.jjs.impl.UnifyAst.searchForTypeBySource(UnifyAst.java:985)
[INFO] at com.google.gwt.dev.jjs.impl.UnifyAst.addRootTypes(UnifyAst.java:530)
[INFO] at com.google.gwt.dev.jjs.JavaToJavaScriptCompiler.precompile(JavaToJavaScriptCompiler.java:621)
[INFO] at com.google.gwt.dev.jjs.JavaScriptCompiler.precompile(JavaScriptCompiler.java:33)
[INFO] at com.google.gwt.dev.Precompile.precompile(Precompile.java:278)
[INFO] at com.google.gwt.dev.Precompile.precompile(Precompile.java:229)
[INFO] at com.google.gwt.dev.Precompile.precompile(Precompile.java:141)
[INFO] at com.google.gwt.dev.Compiler.run(Compiler.java:232)
[INFO] at com.google.gwt.dev.Compiler.run(Compiler.java:198)
[INFO] at com.google.gwt.dev.Compiler$1.run(Compiler.java:170)
[INFO] at com.google.gwt.dev.CompileTaskRunner.doRun(CompileTaskRunner.java:88)
[INFO] at com.google.gwt.dev.CompileTaskRunner.runWithAppropriateLogger(CompileTaskRunner.java:82)
[INFO] at com.google.gwt.dev.Compiler.main(Compiler.java:177)
[INFO] Caused by: java.io.InvalidClassException: com.google.gwt.dev.jjs.ast.JDeclaredType; local class incompatible: stream classdesc serialVersionUID = -8155793964565947646, local class serialVersionUID = -1052417216019896795