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2013-11-01T09:47:22.950
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2013-11-01T09:47:22.950
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<p>Just in case if it so happens that you are getting this exception from inside a JUnit test you can transform the JUnit exception with a <code>TestRule</code> (this is was inspired by the source of <code>ExpectedException</code> <code>TestRule</code>)</p> <pre><code>public class HibernateBatchUnwindRule implements TestRule { private boolean handleAssumptionViolatedExceptions = false; private boolean handleAssertionErrors = false; private HibernateBatchUnwindRule() { } public static HibernateBatchUnwindRule create(){ return new HibernateBatchUnwindRule(); } public HibernateBatchUnwindRule handleAssertionErrors() { handleAssertionErrors = true; return this; } public HibernateBatchUnwindRule handleAssumptionViolatedExceptions() { handleAssumptionViolatedExceptions = true; return this; } public Statement apply(Statement base, org.junit.runner.Description description) { return new ExpectedExceptionStatement(base); } private class ExpectedExceptionStatement extends Statement { private final Statement fNext; public ExpectedExceptionStatement(Statement base) { fNext = base; } @Override public void evaluate() throws Throwable { try { fNext.evaluate(); } catch (AssumptionViolatedException e) { optionallyHandleException(e, handleAssumptionViolatedExceptions); } catch (AssertionError e) { optionallyHandleException(e, handleAssertionErrors); } catch (Throwable e) { handleException(e); } } } private void optionallyHandleException(Throwable e, boolean handleException) throws Throwable { if (handleException) { handleException(e); } else { throw e; } } private void handleException(Throwable e) throws Throwable { Throwable cause = e.getCause(); while (cause != null) { if (cause instanceof BatchUpdateException) { BatchUpdateException batchUpdateException = (BatchUpdateException) cause; throw batchUpdateException.getNextException(); } cause = cause.getCause(); }; throw e; } } </code></pre> <p>and then add the rule to the test case</p> <pre><code>public class SomeTest { @Rule public HibernateBatchUnwindRule batchUnwindRule = HibernateBatchUnwindRule.create(); @Test public void testSomething(){...} } </code></pre>
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1. POCall getNextException to see the cause : How to make Hibernate / JPA show the DB server message for an exception
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1. USBoris Treukhov
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