I can't get my java compiled in a mixed Java 8 and Groovy project. I've attached a file with all details but, in summary, this is errror:

[INFO] --- maven-compiler-plugin:3.6.2:compile (default-compile) @ a1webapp-service-scripting ---
[INFO] Changes detected - recompiling the module!
[INFO] Using Groovy-Eclipse compiler to compile both Java and Groovy files
[INFO] Classpath: ]
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org.eclipse.jdt.internal.compiler.problem.AbortMethod:
at org.eclipse.jdt.internal.compiler.ast.SingleNameReference.generatePostIncrement(SingleNameReference.java:775)
at org.eclipse.jdt.internal.compiler.ast.PostfixExpression.generateCode(PostfixExpression.java:40)
at org.eclipse.jdt.internal.compiler.ast.Expression.generateOptimizedStringConcatenation(Expression.java:795)
at org.eclipse.jdt.internal.compiler.codegen.CodeStream.generateStringConcatenationAppend(CodeStream.java:2380)
at org.eclipse.jdt.internal.compiler.ast.BinaryExpression.generateCode(BinaryExpression.java:142)
at org.eclipse.jdt.internal.compiler.ast.SingleNameReference.generateAssignment(SingleNameReference.java:353)
at org.eclipse.jdt.internal.compiler.ast.Assignment.generateCode(Assignment.java:134)
at org.eclipse.jdt.internal.compiler.ast.Expression.generateCode(Expression.java:705)
at org.eclipse.jdt.internal.compiler.ast.Block.generateCode(Block.java:80)
at org.eclipse.jdt.internal.compiler.ast.IfStatement.generateCode(IfStatement.java:195)
at org.eclipse.jdt.internal.compiler.ast.Block.generateCode(Block.java:80)
at org.eclipse.jdt.internal.compiler.ast.ForeachStatement.generateCode(ForeachStatement.java:332)
at org.eclipse.jdt.internal.compiler.ast.SwitchStatement.generateCodeForStringSwitch(SwitchStatement.java:275)
at org.eclipse.jdt.internal.compiler.ast.SwitchStatement.generateCode(SwitchStatement.java:314)
at org.eclipse.jdt.internal.compiler.ast.Block.generateCode(Block.java:80)
at org.eclipse.jdt.internal.compiler.ast.TryStatement.generateCode(TryStatement.java:534)
at org.eclipse.jdt.internal.compiler.ast.SwitchStatement.generateCode(SwitchStatement.java:411)
at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.generateCode(AbstractMethodDeclaration.java:325)
at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.generateCode(AbstractMethodDeclaration.java:270)
at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.generateCode(TypeDeclaration.java:566)
at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.generateCode(TypeDeclaration.java:635)
at org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration.generateCode(CompilationUnitDeclaration.java:369)
at org.eclipse.jdt.internal.compiler.Compiler.process(Compiler.java:838)
at org.eclipse.jdt.internal.compiler.ProcessTaskManager.run(ProcessTaskManager.java:137)
at java.lang.Thread.run(Thread.java:748)
[INFO] Compilation complete. Compiled 9 files.
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR] /Users/simont/Documents/git-repo-a1box5/a1webapp-root/a1webapp-service-scripting/src/main/java/com/acme/service/scripting/ScriptingService.java: 1. ERROR in /Users/simont/Documents/git-repo-a1box5/a1webapp-root/a1webapp-service-scripting/src/main/java/com/acme/service/scripting/ScriptingService.java (at line 0)
package com.acme.service.scripting;
^
Internal compiler error: java.lang.IllegalArgumentException: info cannot be null at org.eclipse.jdt.internal.compiler.codegen.StackMapFrame.addStackItem(StackMapFrame.java:81)

Is this related to: #246

details.txt