Name: chT40241 Date: 12/12/97


We have the following C++ code in our program:
JNI_GetDefaultJavaVMInitArgs(&vm_args);

CString home = "java.home="+theApp.m_strInstallDir+"\\java\\bin\\..";
properties[0] = home.GetBuffer(1);

if (theApp.m_bEnableJIT)
{
 TRACE("JIT enabled on build-time Java VM\n");
 properties[1] = "java.compiler=symcjit";
 properties[2] = NULL;
}
else
{
 properties[1] = NULL;
 properties[2] = NULL;
}

vm_args.properties = properties;
if (JNI_CreateJavaVM(&jvm, &env, &vm_args) != 0)
{
 AfxMessageBox("Unable to start the Java Virtual Machine", MB_ICONINFORMATION);
 return FALSE;
}
jclass jcl = env->FindClass("com/sas/ide/FrameEventHandler");
if (env->ExceptionOccurred())
{
 env->ExceptionDescribe();
 env->ExceptionClear();
 AfxMessageBox("Unable to find FrameEventHandler.class");
 return FALSE;
}

if (jcl)
{
 mjc_FrameEventHandler = (jclass)env->NewGlobalRef (jcl);
 env->DeleteLocalRef (jcl);

 JNINativeMethod m2[] = {
  { "componentResizeCallback", "(Ljava/awt/Component;IIII)V", CIDEMDIView::componentResizeCallback},
  { "isIDEComponent", "(Ljava/awt/Component;)Z", CIDEMDIView::isIDEComponent}
 };

 env->RegisterNatives(mjc_FrameEventHandler, m2, 2);

 if (env->ExceptionOccurred())
 {
  env->ExceptionDescribe();
  env->ExceptionClear();
  AfxMessageBox("Unable to register resize callbacks");
  return FALSE;
 }
}

The FrameEventHandler class has the following native method defined:
public native void componentResizeCallback(java.awt.Component c, int x, int y, int w, int h);

When the application is run without the JIT things work fine. When the JIT is enabled we get an UnsatisfiedLinkError thrown.
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