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Code Issues Wiki Activity

[277764] [dstore][regression] IllegalAccessException thrown when connecting to a running server

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This commit is contained in:
David McKnight 2009-05-27 18:46:47 +00:00
parent 27838e12cd
commit 9576ec7cd8
1 changed files with 7 additions and 1 deletions
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8
rse/plugins/org.eclipse.dstore.core/src/org/eclipse/dstore/internal/core/util/MemoryManager.java
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@ -11,6 +11,7 @@
* *
* Contributors: * Contributors:
* David McKnight (IBM) - [261644] [dstore] remote search improvements * David McKnight (IBM) - [261644] [dstore] remote search improvements
* David McKnight (IBM) - [277764] [dstore][regression] IllegalAccessException thrown when connecting to a running server
********************************************************************************/ ********************************************************************************/
package org.eclipse.dstore.internal.core.util; package org.eclipse.dstore.internal.core.util;
@ -57,13 +58,15 @@ public class MemoryManager {
Object mbObj = list.get(i); Object mbObj = list.get(i);
Class mbClass = mbObj.getClass(); Class mbClass = mbObj.getClass();
Method getSupportedMethod = mbClass.getDeclaredMethod("isUsageThresholdSupported", new Class[0]); //$NON-NLS-1$
Method getSupportedMethod = mbClass.getDeclaredMethod("isUsageThresholdSupported", new Class[0]); //$NON-NLS-1$
getSupportedMethod.setAccessible(true);
Boolean usageThresholdSupported = (Boolean)getSupportedMethod.invoke(mbObj, null); Boolean usageThresholdSupported = (Boolean)getSupportedMethod.invoke(mbObj, null);
if (usageThresholdSupported.booleanValue()){ if (usageThresholdSupported.booleanValue()){
Method getTypeMethod = mbClass.getDeclaredMethod("getType", new Class[0]); //$NON-NLS-1$ Method getTypeMethod = mbClass.getDeclaredMethod("getType", new Class[0]); //$NON-NLS-1$
getTypeMethod.setAccessible(true);
Object typeObj = getTypeMethod.invoke(mbObj, null); Object typeObj = getTypeMethod.invoke(mbObj, null);
Class memoryType = Class.forName("java.lang.management.MemoryType"); //$NON-NLS-1$ Class memoryType = Class.forName("java.lang.management.MemoryType"); //$NON-NLS-1$
Field field = memoryType.getField("HEAP"); //$NON-NLS-1$ Field field = memoryType.getField("HEAP"); //$NON-NLS-1$
@ -71,16 +74,19 @@ public class MemoryManager {
if (fieldObj.equals(typeObj)){ if (fieldObj.equals(typeObj)){
Method getUsageMethod = mbClass.getDeclaredMethod("getUsage", new Class[0]); //$NON-NLS-1$ Method getUsageMethod = mbClass.getDeclaredMethod("getUsage", new Class[0]); //$NON-NLS-1$
getUsageMethod.setAccessible(true);
Object usageObj = getUsageMethod.invoke(mbObj, null); Object usageObj = getUsageMethod.invoke(mbObj, null);
Class usageClass = usageObj.getClass(); Class usageClass = usageObj.getClass();
Method getMaxMethod = usageClass.getDeclaredMethod("getMax", new Class[0]); //$NON-NLS-1$ Method getMaxMethod = usageClass.getDeclaredMethod("getMax", new Class[0]); //$NON-NLS-1$
getMaxMethod.setAccessible(true);
Long maxObj = (Long)getMaxMethod.invoke(usageObj, null); Long maxObj = (Long)getMaxMethod.invoke(usageObj, null);
Method setThresholdMethod = mbClass.getDeclaredMethod("setUsageThreshold", new Class[] { long.class }); //$NON-NLS-1$ Method setThresholdMethod = mbClass.getDeclaredMethod("setUsageThreshold", new Class[] { long.class }); //$NON-NLS-1$
Object[] args = new Object[1]; Object[] args = new Object[1];
args[0] = new Long((long)(maxObj.longValue() * threshold)); args[0] = new Long((long)(maxObj.longValue() * threshold));
setThresholdMethod.setAccessible(true);
setThresholdMethod.invoke(mbObj, args); setThresholdMethod.invoke(mbObj, args);
mbean = mbObj; mbean = mbObj;
break; break;