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Support Article

Error after upgrading JDK version to 1.7



User gets an error while accessing application, after upgrading JDK to 1.7.

Error Messages

JVMVRFY012 stack shape inconsistent; class=com/pegarules/generated/pxRecents_071017_Yijyybb_xSQ6cEMj6A_EEQ, method=pxRecents07_10_17(Lcom/pega/pegarules/pub/clipboard/ClipboardPage;Ljava/lang/String;)V, pc=20
[1/11/17 18:31:57:040 EST] 0000016d SystemErr R at java.lang.J9VMInternals.verifyImpl(Native Method)

Steps to Reproduce

  1. Upgrade the JDK.
  2. Deploy EAR.
  3. Access the application.

Root Cause

When Java was upgraded from JDK1.6 to 1.7. In IBM WebSphere, byte code verification has malfunctioned and threw the error.


Installing the SDK 1.7.0 SR6 FP1 version will solve the issue.

Published February 10, 2017 - Updated October 8, 2020

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