Examples with JavaObject com.ibm.dtfj.java.JavaObject used on opensource projects

Example 6 with JavaObject

use of com.ibm.dtfj.java.JavaObject in project openj9 by eclipse.

the class DTFJJavaObject method getAssociatedClass.

private JavaClass getAssociatedClass() {
    // Retrieve the class loader for this class for using introspection to speed up
    // lookup when lots of classes are loaded by lots of class loaders.
    JavaObject targetClassLoaderObject = null;
    try {
        JavaClass javaLangClass = this.getJavaClass();
        Iterator<?> fields = javaLangClass.getDeclaredFields();
        while (fields.hasNext()) {
            Object o = fields.next();
            if (o instanceof JavaField) {
                JavaField field = (JavaField) o;
                if ("classLoader".equals(field.getName())) {
                    targetClassLoaderObject = (JavaObject) field.get(this);
                    break;
                }
            }
        }
    } catch (CorruptDataException e) {
    // This is only an optimisation to save us walking all class loaders. Continue
    } catch (MemoryAccessException e) {
    // This is only an optimisation to save us walking all class loaders. Continue
    }
    return getAssociatedClass(targetClassLoaderObject);
}

Example 7 with JavaObject

use of com.ibm.dtfj.java.JavaObject in project openj9 by eclipse.

the class DTFJJavaObject method addAllObjectArrayReferences.

private void addAllObjectArrayReferences() throws CorruptDataException, MemoryAccessException {
    getReferences();
    JavaObject[] elements = new JavaObject[arraySize];
    this.arraycopy(0, elements, 0, arraySize);
    for (int i = 0; i != elements.length; i++) {
        JavaObject thisObj = elements[i];
        if (thisObj != null) {
            references.add(new DTFJJavaReference(this, thisObj, "Array Reference [" + i + "]", JavaReference.REFERENCE_ARRAY_ELEMENT, JavaReference.HEAP_ROOT_UNKNOWN, JavaReference.REACHABILITY_STRONG));
        }
    }
}

Example 8 with JavaObject

use of com.ibm.dtfj.java.JavaObject in project openj9 by eclipse.

the class DTFJJavaClass method addConstantPoolReferences.

@SuppressWarnings("rawtypes")
private JavaReference addConstantPoolReferences(List<Object> references) {
    // get the Constant Pool references from this class.
    JavaReference jRef = null;
    Iterator constantPoolIt = getConstantPoolReferences();
    try {
        while (constantPoolIt.hasNext()) {
            // get each reference in turn, note that the iterator can return JavaClass
            // JavaObject and CorruptData. The CorruptData objects are ignored.
            Object cpObject = constantPoolIt.next();
            if (cpObject instanceof JavaObject) {
                // add the reference to the container.
                jRef = new DTFJJavaReference(this, cpObject, "Constant Pool Object", JavaReference.REFERENCE_CONSTANT_POOL, JavaReference.HEAP_ROOT_UNKNOWN, JavaReference.REACHABILITY_STRONG);
            } else if (cpObject instanceof JavaClass) {
                // add the reference to the container.
                jRef = new DTFJJavaReference(this, cpObject, "Constant Pool Class", JavaReference.REFERENCE_CONSTANT_POOL, JavaReference.HEAP_ROOT_UNKNOWN, JavaReference.REACHABILITY_STRONG);
            }
            if (null != jRef) {
                references.add(jRef);
            }
        }
    } catch (Throwable t) {
        CorruptData cd = J9DDRDTFJUtils.handleAsCorruptData(DTFJContext.getProcess(), t);
        references.add(cd);
    }
    return jRef;
}

Example 9 with JavaObject

use of com.ibm.dtfj.java.JavaObject in project openj9 by eclipse.

the class DTFJJavaThread method getObject.

/* (non-Javadoc)
	 * @see com.ibm.dtfj.java.JavaThread#getObject()
	 */
public JavaObject getObject() throws CorruptDataException {
    try {
        if (thread.threadObject().isNull()) {
            return null;
        } else {
            JavaObject threadObj = new DTFJJavaObject(thread.threadObject());
            // For additional validation of the java.lang.Thread object try getting its class name
            threadObj.getJavaClass().getName();
            return threadObj;
        }
    } catch (Throwable t) {
        throw J9DDRDTFJUtils.handleAsCorruptDataException(DTFJContext.getProcess(), t);
    }
}

Example 10 with JavaObject

use of com.ibm.dtfj.java.JavaObject in project openj9 by eclipse.

the class JavaObjectComparator method testArraySize.

@SuppressWarnings("unchecked")
public void testArraySize(List ddrObjects, List jextractObjects) throws Exception {
    assertEquals(jextractObjects.size(), ddrObjects.size());
    for (int i = 0; i < ddrObjects.size(); i++) {
        JavaObject ddrJavaObject = (JavaObject) ddrObjects.get(i);
        JavaObject jextractJavaObject = (JavaObject) jextractObjects.get(i);
        if (ddrJavaObject.isArray() == jextractJavaObject.isArray()) {
            int ddrSize = 0;
            try {
                ddrSize = ddrJavaObject.getArraySize();
            } catch (IllegalArgumentException e) {
                if (ddrJavaObject.isArray()) {
                    throw e;
                }
            }
            int jextractSize = 0;
            try {
                jextractSize = jextractJavaObject.getArraySize();
            } catch (IllegalArgumentException e) {
                if (jextractJavaObject.isArray()) {
                    throw e;
                }
            }
            assertEquals("ddr array size not equal to jextract array size", jextractSize, ddrSize);
        }
    }
}