Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-6608214

Exception throw while analysing a file with error

    Details

    • Type: Bug
    • Status: Closed
    • Priority: P3
    • Resolution: Fixed
    • Affects Version/s: 7
    • Fix Version/s: 7
    • Component/s: tools
    • Subcomponent:
    • Resolved In Build:
      b25
    • CPU:
      x86
    • OS:
      linux
    • Verification:
      Not verified

      Description

      The following exception is thrown while executing the test case below.

      java.lang.ClassCastException: com.sun.tools.javac.code.Symbol$TypeSymbol cannot be cast to com.sun.tools.javac.code.Symbol$ClassSymbol
      at com.sun.tools.javac.comp.Check.checkImplementations(Check.java:1558)
      at com.sun.tools.javac.comp.Check.checkImplementations(Check.java:1549)
      at com.sun.tools.javac.comp.Attr.attribClassBody(Attr.java:2736)
      at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:2666)
      at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:2602)
      at com.sun.tools.javac.comp.Attr.attribBounds(Attr.java:480)
      at com.sun.tools.javac.comp.Attr.visitMethodDef(Attr.java:584)
      at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:653)
      at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:372)
      at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:409)
      at com.sun.tools.javac.comp.Attr.attribClassBody(Attr.java:2740)
      at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:2666)
      at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:2602)
      at com.sun.tools.javac.main.JavaCompiler.attribute(JavaCompiler.java:1050)
      at com.sun.tools.javac.main.JavaCompiler.attribute(JavaCompiler.java:1026)
      at com.sun.tools.javac.api.JavacTaskImpl.analyze(JavacTaskImpl.java:369)
      at com.sun.tools.javac.api.JavacTaskImpl.analyze(JavacTaskImpl.java:349)
      at T9999999.main(T9999999.java:61)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
      at java.lang.reflect.Method.invoke(Method.java:597)
      at com.sun.javatest.regtest.MainAction$SameVMThread.run(MainAction.java:560)
      at java.lang.Thread.run(Thread.java:619)


      /*
       * @test
       * @bug 9999999
       * @summary a ClassCastException thrown when analyzing incorrect code.
       */

      import com.sun.source.util.JavacTask;
      import java.io.IOException;
      import java.net.URI;
      import java.util.Arrays;
      import javax.tools.JavaCompiler;
      import javax.tools.JavaFileObject;
      import javax.tools.SimpleJavaFileObject;
      import javax.tools.ToolProvider;

      public class T9999999 {
          static class MyFileObject extends SimpleJavaFileObject {
              private String text;
              public MyFileObject(String text) {
                  super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);
                  this.text = text;
              }
              @Override
              public CharSequence getCharContent(boolean ignoreEncodingErrors) {
                  return text;
              }
          }
          
          public static void main(String[] args) throws IOException {
              final String bootPath = System.getProperty("sun.boot.class.path"); //NOI18N
              final JavaCompiler tool = ToolProvider.getSystemJavaCompiler();
              assert tool != null;
              
              String code = "package test; public class Test<S> { <T extends S & Runnable> void test() {} }";
              
              JavacTask ct = (JavacTask)tool.getTask(null, null, null, Arrays.asList("-bootclasspath", bootPath, "-Xjcov"), null, Arrays.asList(new MyFileObject(code)));
              
              ct.analyze();
          }
      }


      I have a revision 252 from:
      https://openjdk.dev.java.net/svn/openjdk/jdk/trunk

      See also NetBeans issue:
      http://www.netbeans.org/issues/show_bug.cgi?id=116436
      An error is (correctly) reported before the exception occurs (the error is that the bound combines a type variable and an interface, which is prohibited, according to JLS 4.4). The problem IMO is that the Attr/Check are not prepared for this situation. Presumably because the execution never reaches Attr/Check in the cmd line javac in this case.

        Attachments

          Issue Links

            Activity

              People

              • Assignee:
                mcimadamore Maurizio Cimadamore
                Reporter:
                jlahoda Jan Lahoda
              • Votes:
                0 Vote for this issue
                Watchers:
                0 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved:
                  Imported:
                  Indexed: