[NETBEANS-455] "The bytes do not represent a valid class" error while invoking the "Apply Code Changes" action

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 9.0
• Component/s: debugger - Java, java - Classfile

Environment

Apache NetBeans IDE Dev (Build incubator-netbeans-release-205-on-20180202) on OpenJDK 64-Bit Server VM 9.0.4.1+11, Mac OS X version 10.9.5 running on x86_64; UTF-8; en_US (nb)

• Assignee: Unassigned
• Reporter: Eirik Bakke
• Created: 07/Mar/18 22:44
• Updated: 03/Apr/18 19:52

Description

I got the following exception while invoking the "Apply Code Changes" action in the Java debugger:

INFO [org.netbeans.modules.maven.debug.DebuggerChecker]: The bytes do not represent a valid class. class not in class file format
java.lang.ClassFormatError: class not in class file format
	at jdk.jdi/com.sun.tools.jdi.VirtualMachineImpl.redefineClasses(VirtualMachineImpl.java:332)
	at org.netbeans.modules.debugger.jpda.jdi.VirtualMachineWrapper.redefineClasses(VirtualMachineWrapper.java:3138)
	at org.netbeans.modules.debugger.jpda.JPDADebuggerImpl.fixClasses(JPDADebuggerImpl.java:471)
[catch] at org.netbeans.modules.maven.debug.DebuggerChecker.reload(DebuggerChecker.java:401)
	at org.netbeans.modules.maven.debug.DebuggerChecker.doReload(DebuggerChecker.java:206)
	at org.netbeans.modules.maven.debug.DebuggerChecker.checkRunConfig(DebuggerChecker.java:145)
	at org.netbeans.modules.maven.execute.PrereqCheckerMerger$Impl.checkRunConfig(PrereqCheckerMerger.java:64)
	at org.netbeans.modules.maven.api.execute.RunUtils.run(RunUtils.java:65)
	at org.netbeans.modules.maven.ActionProviderImpl.invokeAction(ActionProviderImpl.java:262)
	at org.netbeans.modules.maven.ActionProviderImpl.access$000(ActionProviderImpl.java:111)
	at org.netbeans.modules.maven.ActionProviderImpl$1.run(ActionProviderImpl.java:235)
	at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
	at org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:45)
	at org.openide.util.lookup.Lookups.executeWith(Lookups.java:278)
	at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)

This is a Maven-based NetBeans Platform module project. The module project is using JDK8 while the IDE is running on JDK9.

Reporting this as a new JIRA issue since the old NetBeans exception reporter no longer seems to be in use.