Issue
I downloaded the checkstyle plugin for university in order to check the code like my professor wants it. We got an xml configuration file and i created with that another checkstyle configuration (Preferences -> Checkstyle -> New...) Also I set it as default. Now we have to create an automatic formatter like "Rightclick project -> Checkstyle -> Create Formatter-profile". Now I get an problem popup from eclipse with the message: "An internal error occurred during: "transformCheckstyle". org/eclipse/jdt/internal/ui/preferences/PreferencesAccess
This is the full error message from the log:
!ENTRY org.eclipse.core.jobs 4 2 2018-12-02 16:42:24.496
!MESSAGE An internal error occurred during: "transformCheckstyle".
!STACK 0
java.lang.NoClassDefFoundError: org/eclipse/jdt/internal/ui/preferences/PreferencesAccess
at net.sf.eclipsecs.core.transformer.FormatterConfigWriter.writeCleanupSettings(FormatterConfigWriter.java:95)
at net.sf.eclipsecs.core.transformer.FormatterConfigWriter.writeSettings(FormatterConfigWriter.java:89)
at net.sf.eclipsecs.core.transformer.FormatterConfigWriter.<init>(FormatterConfigWriter.java:81)
at net.sf.eclipsecs.core.transformer.CheckstyleTransformer.transformRules(CheckstyleTransformer.java:124)
at net.sf.eclipsecs.core.jobs.TransformCheckstyleRulesJob.runInWorkspace(TransformCheckstyleRulesJob.java:117)
at org.eclipse.core.internal.resources.InternalWorkspaceJob.run(InternalWorkspaceJob.java:42)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
!SESSION 2018-12-02 16:44:15.808 -----------------------------------------------
eclipse.buildId=4.9.0.I20180906-0745
java.version=1.8.0_191
java.vendor=Oracle Corporation
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=de_DE
Framework arguments: -product org.eclipse.epp.package.java.product
Command-line arguments: -os win32 -ws win32 -arch x86 -product org.eclipse.epp.package.java.product
Solution
CheckStyle had this bug reported: https://github.com/checkstyle/eclipse-cs/issues/107
It has been fixed so upgrade to the latest CheckStyle version for Eclipse.
Answered By - Melloware
