JavalangClassFormatError: Invalid constant pool entry Type 18
I just released a new version of my code to my git repository and pushed it to the server. jenkins started building my tests as expected, but unexpectedly failed with the following stack trace:
java.lang.ClassFormatError: Invalid Constant Pool entry Type 18
at org.apache.tools.ant.taskdefs.optional.depend.constantpool.ConstantPoolEntry.readEntry(ConstantPoolEntry.java:159)
at org.apache.tools.ant.taskdefs.optional.depend.constantpool.ConstantPool.read(ConstantPool.java:67)
at org.apache.tools.ant.taskdefs.optional.depend.ClassFile.read(ClassFile.java:72)
at org.apache.tools.ant.taskdefs.optional.depend.AntAnalyzer.determineDependencies(AntAnalyzer.java:92)
at org.apache.tools.ant.util.depend.AbstractAnalyzer.getClassDependencies(AbstractAnalyzer.java:100)
at org.apache.tools.ant.taskdefs.optional.depend.Depend.determineDependencies(Depend.java:346)
at org.apache.tools.ant.taskdefs.optional.depend.Depend.execute(Depend.java:718)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:291)
at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
at org.apache.tools.ant.Task.perform(Task.java:348)
at org.apache.tools.ant.Target.execute(Target.java:390)
at org.apache.tools.ant.Target.performTasks(Target.java:411)
at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1399)
at org.apache.tools.ant.helper.SingleCheckExecutor.executeTargets(SingleCheckExecutor.java:38)
at org.apache.tools.ant.Project.executeTargets(Project.java:1251)
at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:442)
at org.apache.tools.ant.taskdefs.SubAnt.execute(SubAnt.java:302)
at org.apache.tools.ant.taskdefs.SubAnt.execute(SubAnt.java:221)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:291)
at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
at org.apache.tools.ant.Task.perform(Task.java:348)
at org.apache.tools.ant.Target.execute(Target.java:390)
at org.apache.tools.ant.Target.performTasks(Target.java:411)
at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1399)
at org.apache.tools.ant.Project.executeTarget(Project.java:1368)
at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
at org.apache.tools.ant.Project.executeTargets(Project.java:1251)
at org.apache.tools.ant.Main.runBuild(Main.java:809)
at org.apache.tools.ant.Main.startAnt(Main.java:217)
at org.apache.tools.ant.launch.Launcher.run(Launcher.java:280)
at org.apache.tools.ant.launch.Launcher.main(Launcher.java:109)
(see answer for solution)
Greetz, Nico
+3
source to share
1 answer
after a day following different trails, I found a solution and just wanted to post it here in case anyone ran into the same problem.
- the version of ant (1.8.2.) I was using was too old to handle CONSTANT_INVOKEDYNAMIC (Invalid Constant Pool entry Type 18), which I understand means that ant found some java 8 lamda code that it can "t a pen
- I already used lambdas before doing this! so why is he complaining about it now?
- googleing will lead me to an error in ant 1.8.2 which produced exactly this error. I was skeptical as I hadn't downgraded my ant installation on the server and 10 minutes ago the build went fine - since 1.8.2!
so I started to solve pragmatically:
-
downloaded ant 1.9.5, it is unknown somewhere
-
renamed to old ant command (/ usr / bin / ant => /usr/bin/ant-1.8.2)
-
linked the new ant to / usr / bin / ant
and then everything worked fine!
after this odyssey, does anyone have any idea why this error didn't appear earlier?
+3
source to share