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IJ03716: JAVA/LANG/LINKAGEERROR FROM SUN/MISC/UNSAFE.DEFINEANONYMOUSCLASS()

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APAR status

  • Closed as program error.

Error description

  • Error Message: java.lang.LinkageError: loading constraint
    violation when overriding method
    "com/sample/Printer$PrinterEngine.print(Ljava/lang/String;Lcom/s
    ample/Printer$SomeDescriptor;)V" during creation of class
    "com/sample/Printer$PrinterEngine$$Lambda$2/00000000D0636330":
    loader "java/lang/InternalAnonymousClassLoader@273969de" of
    class
    "com/sample/Printer$PrinterEngine$$Lambda$2/00000000D0636330"
    and loader "java/net/URLClassLoader@e67e8027" of class
    "com/sample/Printer$PrinterEngine" have different types for the
    method signature
    .
    Stack Trace: j9vm29!setClassLoadingConstraintOverrideError+0x31c
    <OSB>c:\temp\bld_373586\bld_win_x86-64_cmprssptrs\vm\exceptionsu
    pport.c @ 999<CSB>
    j9vm29!internalCreateRAMClassFromROMClassImpl+0x583
    <OSB>c:\temp\bld_373586\bld_win_x86-64_cmprssptrs\vm\createramcl
    ass.cpp @ 2048<CSB>
    j9vm29!internalCreateRAMClassFromROMClass+0x4c7
    <OSB>c:\temp\bld_373586\bld_win_x86-64_cmprssptrs\vm\createramcl
    ass.cpp @ 2838<CSB>
    j9vm29!internalDefineClass+0x4ed
    <OSB>c:\temp\bld_373586\bld_win_x86-64_cmprssptrs\bcutil\definec
    lass.c @ 144<CSB>
    jclse7b_29!defineClassCommon+0x51f
    <OSB>c:\temp\bld_373586\bld_win_x86-64_cmprssptrs\jcl\common\jcl
    define.c @ 203<CSB>
    jclse7b_29!Java_sun_misc_Unsafe_defineAnonymousClass+0x230
    <OSB>c:\temp\bld_373586\bld_win_x86-64_cmprssptrs\jcl\common\sun
    _misc_unsafe.cpp @ 113<CSB>
    .
    

Local fix

Problem summary

  • The JVM was checking class loading constraints incorrectly for
    anonymous classes.
    

Problem conclusion

  • The JVM has been updated to use the correct ClassLoader for
    class loading constraint checks for anonymous classes.
    .
    This APAR will be fixed in the following Java Releases:
       8    SR5 FP10  (8.0.5.10)
    .
    Contact your IBM Product's Service Team for these Service
    Refreshes and Fix Packs.
    For those running stand-alone, information about the available
    Service Refreshes and Fix Packs can be found at:
               https://www.ibm.com/developerworks/java/jdk/
    

Temporary fix

Comments

APAR Information

  • APAR number

    IJ03716

  • Reported component name

    J9 COMMON CODE

  • Reported component ID

    620700127

  • Reported release

    270

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2018-01-29

  • Closed date

    2018-01-29

  • Last modified date

    2018-01-29

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

Fix information

  • Fixed component name

    J9 COMMON CODE

  • Fixed component ID

    620700127

Applicable component levels

  • R270 PSY

       UP

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Document Information

Modified date:
21 February 2022