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Eclipse 2022-12 (4.26.0) not debugging java code 1.6 [message #1856754]

Wed, 28 December 2022 19:37

Eclipse User

Hello everyone, since the last update I can't use the debugger with java 1.6 code, it throws the following exception:

Exception in thread "main" java.lang.UnsupportedClassVersionError: org/eclipse/jdt/launching/internal/javaagent/Premain : Unsupported major.minor version 51.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
FATAL ERROR in native method: processing of -javaagent failed
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at sun.instrument.InstrumentationImpl.loadClassAndStartAgent(InstrumentationImpl.java:280)
at sun.instrument.InstrumentationImpl.loadClassAndCallPremain(InstrumentationImpl.java:338)

Re: Eclipse 2022-12 (4.26.0) not debugging java code 1.6 [message #1856756 is a reply to message #1856754]

Thu, 29 December 2022 03:38

Eclipse User

It looks like that's a perhaps side effect of this change though even before it was set to 1.8...

https://github.com/eclipse-jdt/eclipse.jdt.debug/issues/61

Re: Eclipse 2022-12 (4.26.0) not debugging java code 1.6 [message #1860345 is a reply to message #1856754]

Mon, 31 July 2023 10:31

Eclipse User

Any chance to fix this?

java.lang.UnsupportedClassVersionError: org/eclipse/jdt/launching/internal/javaagent/Premain : Unsupported major.minor version 52.0
FATAL ERROR in native method: processing of -javaagent failed
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
	at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
	at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
	at sun.instrument.InstrumentationImpl.loadClassAndStartAgent(InstrumentationImpl.java:300)
	at sun.instrument.InstrumentationImpl.loadClassAndCallPremain(InstrumentationImpl.java:397)
Exception in thread "main"

Re: Eclipse 2022-12 (4.26.0) not debugging java code 1.6 [message #1862108 is a reply to message #1856754]

Mon, 13 November 2023 07:16

Eclipse User

Please make your choice:

Java 6 is dead
Java itself is dead
Eclipse is dead, use Netbaens
Eclipse is dead, use IDEA
Don not use debugger, use unit tests

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