[GitHub] [commons-bcel] garydgregory commented on pull request #157: Keep ConstantPool.getConstant(int) backward compatible with v6.5.0

[GitBox <gi...@apache.org>]

garydgregory commented on PR #157:
URL: https://github.com/apache/commons-bcel/pull/157#issuecomment-1315765265

   Hello @KengoTODA 
   Would you be able to give an opinion on whether this PR is related to a regression we are seeing in Xalan? 
   The (long) thread: https://lists.apache.org/thread/dojn56v56chkytwffshm343rnj31x3kh
   More specifically, we see errors like:
   ```
   [xalantest]   ERROR  StylesheetTestlet{trax} boolean39.xsl threw: java.lang.VerifyError: (class: boolean39, method: template$dot$0 signature: (Lorg/apache/xalan/xsltc/DOM;Lorg/apache/xml/dtm/DTMAxisIterator;Lorg/apache/xml/serializer/SerializationHandler;I)V) Expecting to find double on stack
   [xalantest] StylesheetTestlet boolean82.xsl
   [xalantest] java.lang.VerifyError: (class: boolean82, method: template$dot$0 signature: (Lorg/apache/xalan/xsltc/DOM;Lorg/apache/xml/dtm/DTMAxisIterator;Lorg/apache/xml/serializer/SerializationHandler;I)V) Expecting to find double on stack
   [xalantest] java.lang.VerifyError: (class: boolean82, method: template$dot$0 signature: (Lorg/apache/xalan/xsltc/DOM;Lorg/apache/xml/dtm/DTMAxisIterator;Lorg/apache/xml/serializer/SerializationHandler;I)V) Expecting to find double on stack
   [xalantest]     at java.lang.Class.getDeclaredConstructors0(Native Method)
   [xalantest]     at java.lang.Class.privateGetDeclaredConstructors(Class.java:2671)
   [xalantest]     at java.lang.Class.getConstructor0(Class.java:3075)
   [xalantest]     at java.lang.Class.newInstance(Class.java:412)
   [xalantest]     at org.apache.xalan.xsltc.trax.TemplatesImpl.getTransletInstance(TemplatesImpl.java:340)
   [xalantest]     at org.apache.xalan.xsltc.trax.TemplatesImpl.newTransformer(TemplatesImpl.java:369)
   [xalantest]     at org.apache.xalan.xsltc.trax.TransformerFactoryImpl.newTransformer(TransformerFactoryImpl.java:619)
   [xalantest]     at org.apache.qetest.xslwrapper.TraxSystemIdWrapper.transform(TraxSystemIdWrapper.java:168)
   [xalantest]     at org.apache.qetest.xsl.StylesheetTestlet.testDatalet(StylesheetTestlet.java:229)
   [xalantest]     at org.apache.qetest.xsl.StylesheetTestlet.execute(StylesheetTestlet.java:108)
   [xalantest]     at org.apache.qetest.xsl.StylesheetTestletDriver.processFileList(StylesheetTestletDriver.java:441)
   [xalantest]     at org.apache.qetest.xsl.StylesheetTestletDriver.processInputDir(StylesheetTestletDriver.java:397)
   [xalantest]     at org.apache.qetest.xsl.StylesheetTestletDriver.runTestCases(StylesheetTestletDriver.java:285)
   [xalantest]     at org.apache.qetest.TestImpl.runTest(TestImpl.java:205)
   [xalantest]     at org.apache.qetest.FileBasedTest.doMain(FileBasedTest.java:833)
   [xalantest]     at org.apache.qetest.xsl.StylesheetTestletDriver.main(StylesheetTestletDriver.java:951)
   [xalantest]     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   [xalantest]     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
   [xalantest]     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   [xalantest]     at java.lang.reflect.Method.invoke(Method.java:498)
   [xalantest]     at org.apache.qetest.QetestUtils.main(QetestUtils.java:434)
   ```
   


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