We have ws-security enabled for a proxy which signs the message and sends request to backend API but on a high load it throws below error.(again the proxy works across all nodes with out any issues) but intermittently it throws below error. We are trying to troubleshoot but looking for any pointers/any suggestions?
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org.apache.ws.security.WSSecurityException: Signature creation failed; nested exception is: java.lang.NullPointerException at org.apache.ws.security.message.WSSecSignature.computeSignature(WSSecSignature.java:515) at org.apache.ws.security.message.WSSecSignature.computeSignature(WSSecSignature.java:442) at org.apache.ws.security.message.WSSecSignature.build(WSSecSignature.java:348) at com.apigeepki.PKISignEncrypt.signSOAPEnvelope(PKISignEncrypt.java:90) at com.apigeepki.PKISignEncrypt.execute(PKISignEncrypt.java:52) at com.apigee.steps.javacallout.JavaCalloutStepDefinition$ClassLoadWrappedExecution.execute(JavaCalloutStepDefinition.java:166) at com.apigee.steps.javacallout.JavaCalloutStepDefinition$SecurityWrappedExecution$1.run(JavaCalloutStepDefinition.java:231) at java.security.AccessController.doPrivileged(Native Method) at com.apigee.steps.javacallout.JavaCalloutStepDefinition$SecurityWrappedExecution.execute(JavaCalloutStepDefinition.java:228) at com.apigee.steps.javacallout.JavaCalloutStepDefinition$CallOutWrapper.execute(JavaCalloutStepDefinition.java:101) at com.apigee.messaging.runtime.steps.StepExecution.execute(StepExecution.java:146) at com.apigee.flow.execution.AbstractAsyncExecutionStrategy$AsyncExecutionTask.call(AbstractAsyncExecutionStrategy.java:74) at com.apigee.flow.execution.AbstractAsyncExecutionStrategy$AsyncExecutionTask.call(AbstractAsyncExecutionStrategy.java:45) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) Caused by: java.lang.NullPointerException at org.apache.ws.security.message.WSSecSignature.computeSignature(WSSecSignature.java:487) ... 18 more
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java.lang.NullPointerException at org.apache.ws.security.util.WSSecurityUtil.prependChildElement(WSSecurityUtil.java:677) at com.apigeepki.PKISignEncrypt.timestampMSG(PKISignEncrypt.java:206) at com.apigeepki.PKISignEncrypt.execute(PKISignEncrypt.java:49) at com.apigee.steps.javacallout.JavaCalloutStepDefinition$ClassLoadWrappedExecution.execute(JavaCalloutStepDefinition.java:166) at com.apigee.steps.javacallout.JavaCalloutStepDefinition$SecurityWrappedExecution$1.run(JavaCalloutStepDefinition.java:231) at java.security.AccessController.doPrivileged(Native Method) at com.apigee.steps.javacallout.JavaCalloutStepDefinition$SecurityWrappedExecution.execute(JavaCalloutStepDefinition.java:228) at com.apigee.steps.javacallout.JavaCalloutStepDefinition$CallOutWrapper.execute(JavaCalloutStepDefinition.java:101) at com.apigee.messaging.runtime.steps.StepExecution.execute(StepExecution.java:146) at com.apigee.flow.execution.AbstractAsyncExecutionStrategy$AsyncExecutionTask.call(AbstractAsyncExecutionStrategy.java:74) at com.apigee.flow.execution.AbstractAsyncExecutionStrategy$AsyncExecutionTask.call(AbstractAsyncExecutionStrategy.java:45) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745)
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Below is the snippet which it points..
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WSSecurityUtil.prependChildElement(secHeader.getSecurityHeader(), timestamp.getElement());
-Vinay
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