content: /*******************************************************************************
   * Copyright (c) 2009, 2019 Mountainminds GmbH & Co. KG and Contributors
   * All rights reserved. This program and the accompanying materials
   * are made available under the terms of the Eclipse Public License v1.0
   * which accompanies this distribution, and is available at
   * http://www.eclipse.org/legal/epl-v10.html
   *
   * Contributors:
   *    Evgeny Mandrikov - initial API and implementation
   *
   *******************************************************************************/
  package org.jacoco.core.internal.analysis.filter;
  
  import org.jacoco.core.internal.instr.InstrSupport;
  import org.junit.Test;
  import org.objectweb.asm.Label;
  import org.objectweb.asm.Opcodes;
  import org.objectweb.asm.tree.MethodNode;
  
  /**
   * Unit tests for {@link TryWithResourcesEcjFilter}.
   */
  public class TryWithResourcesEcjFilterTest extends FilterTestBase {
  
  	private final TryWithResourcesEcjFilter filter = new TryWithResourcesEcjFilter();
  
  	private final MethodNode m = new MethodNode(InstrSupport.ASM_API_VERSION, 0,
  			"name", "()V", null, null);
  
  	/**
  	 * ECJ for
  	 *
  	 * <pre>
  	 *     try (r0 = ...; r1 = ...; r2= ...) {
  	 *         ...
  	 *     } finally (...) {
  	 *         ...
  	 *     }
  	 *     ...
  	 * </pre>
  	 *
  	 * generates
  	 *
  	 * <pre>
  	 *     ACONST_NULL
  	 *     ASTORE primaryExc
  	 *     ACONST_NULL
  	 *     ASTORE suppressedExc
  	 *     ...
  	 *     ASTORE r1
  	 *     ...
  	 *     ASTORE r2
  	 *     ...
  	 *     ASTORE r3
  	 *
  	 *     ... // body
  	 *
  	 *     ALOAD r3
  	 *     IFNULL r2_close
  	 *     ALOAD r3
  	 *     INVOKEVIRTUAL close:()V
  	 *     GOTO r2_close
  	 *
  	 *     ASTORE primaryExc
  	 *     ALOAD r3
  	 *     IFNULL n
  	 *     ALOAD r3
  	 *     INVOKEVIRTUAL close:()V
  	 *     n:
  	 *     ALOAD primaryExc
  	 *     ATHROW
  	 *
  	 *     r2_close:
  	 *     ALOAD r2
  	 *     IFNULL r1_close
  	 *     ALOAD r2
  	 *     INVOKEVIRTUAL close:()V
  	 *     GOTO r1_close
  	 *
  	 *     ASTORE suppressedExc
  	 *     ALOAD primaryExc
  	 *     IFNONNULL s
  	 *     ALOAD suppressedExc
  	 *     ASTORE primaryExc
  	 *     GOTO e
  	 *     s:
  	 *     ALOAD primaryExc
  	 *     ALOAD suppressedExc
  	 *     IF_ACMPEQ e
  	 *     ALOAD primaryExc
  	 *     ALOAD suppressedExc
  	 *     INVOKEVIRTUAL java/lang/Throwable.addSuppressed:(Ljava/lang/Throwable;)V
  	 *     e:
  	 *
  	 *     ALOAD r2
  	 *     IFNULL n
  	 *     ALOAD r2
  	 *     INVOKEVIRTUAL close:()V
  	 *     n:
  	 *     ALOAD primaryExc
  	 *     ATHROW
  	 *
  	 *     r1_close:
  	 *     ALOAD r1
  	 *     IFNULL after
  	 *     ALOAD r1
  	 *     INVOKEVIRTUAL close:()V
  	 *     GOTO after
  	 *
  	 *     ASTORE suppressedExc
  	 *     ALOAD primaryExc
  	 *     IFNONNULL s
  	 *     ALOAD suppressedExc
  	 *     ASTORE primaryExc
  	 *     GOTO e
  	 *     s:
  	 *     ALOAD primaryExc
  	 *     ALOAD suppressedExc
  	 *     IF_ACMPEQ e
  	 *     ALOAD primaryExc
  	 *     ALOAD suppressedExc
  	 *     INVOKEVIRTUAL java/lang/Throwable.addSuppressed:(Ljava/lang/Throwable;)V
  	 *     e:
  	 *
  	 *     ALOAD r1
  	 *     IFNULL n
  	 *     ALOAD r1
  	 *     INVOKEVIRTUAL close:()V
  	 *     n:
  	 *     ALOAD primaryExc
  	 *     ATHROW
  	 *
  	 *     ASTORE suppressedExc
  	 *     ALOAD primaryExc
  	 *     IFNONNULL s
  	 *     ALOAD suppressedExc
  	 *     ASTORE primaryExc
  	 *     GOTO e
  	 *     s:
  	 *     ALOAD primaryExc
  	 *     ALOAD suppressedExc
  	 *     IF_ACMPEQ e
  	 *     ALOAD primaryExc
  	 *     ALOAD suppressedExc
  	 *     INVOKEVIRTUAL java/lang/Throwable.addSuppressed:(Ljava/lang/Throwable;)V
  	 *     e:
  	 *
  	 *     ALOAD primaryExc
  	 *     ATHROW
  	 *
  	 *     ... // additional handlers for catch blocks and finally on exceptional path
  	 *
  	 *     after:
  	 *     ... // finally on normal path
  	 *     ...
  	 * </pre>
  	 */
  	@Test
  	public void ecj() {
  		final Range range0 = new Range();
  		final Range range1 = new Range();
  
  		final Label handler = new Label();
  		m.visitTryCatchBlock(handler, handler, handler, null);
  
  		// primaryExc = null
  		m.visitInsn(Opcodes.ACONST_NULL);
  		m.visitVarInsn(Opcodes.ASTORE, 1);
  		// suppressedExc = null
  		m.visitInsn(Opcodes.ACONST_NULL);
  		m.visitVarInsn(Opcodes.ASTORE, 2);
  
  		// body
  		m.visitInsn(Opcodes.NOP);
  
  		final Label l4 = new Label();
  		final Label l7 = new Label();
  		final Label end = new Label();
  		{ // nextIsEcjClose("r0")
  			m.visitVarInsn(Opcodes.ALOAD, 5);
  			range0.fromInclusive = m.instructions.getLast();
  			m.visitJumpInsn(Opcodes.IFNULL, l4);
  			m.visitVarInsn(Opcodes.ALOAD, 5);
  			m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "Fun2$Resource", "close",
  					"()V", false);
  		}
  		m.visitJumpInsn(Opcodes.GOTO, l4);
  		range0.toInclusive = m.instructions.getLast();
  		// catch (any primaryExc)
  		m.visitLabel(handler);
  		range1.fromInclusive = m.instructions.getLast();
  		m.visitVarInsn(Opcodes.ASTORE, 1);
  		{ // nextIsEcjCloseAndThrow("r0")
  			m.visitVarInsn(Opcodes.ALOAD, 5);
  			Label l11 = new Label();
  			m.visitJumpInsn(Opcodes.IFNULL, l11);
  			m.visitVarInsn(Opcodes.ALOAD, 5);
  			m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "Fun2$Resource", "close",
  					"()V", false);
  			m.visitLabel(l11);
  			m.visitVarInsn(Opcodes.ALOAD, 1);
  			m.visitInsn(Opcodes.ATHROW);
  		}
  		m.visitLabel(l4);
  		{ // nextIsEcjClose("r1")
  			m.visitVarInsn(Opcodes.ALOAD, 4);
  			m.visitJumpInsn(Opcodes.IFNULL, l7);
  			m.visitVarInsn(Opcodes.ALOAD, 4);
  			m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "Fun2$Resource", "close",
  					"()V", false);
  		}
  		m.visitJumpInsn(Opcodes.GOTO, l7);
  		{ // nextIsEcjSuppress
  			m.visitVarInsn(Opcodes.ASTORE, 2);
  			m.visitVarInsn(Opcodes.ALOAD, 1);
  			final Label suppressStart = new Label();
  			m.visitJumpInsn(Opcodes.IFNONNULL, suppressStart);
  			m.visitVarInsn(Opcodes.ALOAD, 2);
  			m.visitVarInsn(Opcodes.ASTORE, 1);
  			final Label suppressEnd = new Label();
  			m.visitJumpInsn(Opcodes.GOTO, suppressEnd);
  			m.visitLabel(suppressStart);
  			m.visitVarInsn(Opcodes.ALOAD, 1);
  			m.visitVarInsn(Opcodes.ALOAD, 2);
  			m.visitJumpInsn(Opcodes.IF_ACMPEQ, suppressEnd);
  			m.visitVarInsn(Opcodes.ALOAD, 1);
  			m.visitVarInsn(Opcodes.ALOAD, 2);
  			m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Throwable",
  					"addSuppressed", "(Ljava/lang/Throwable;)V", false);
  			m.visitLabel(suppressEnd);
  		}
  		{ // nextIsEcjCloseAndThrow("r1")
  			m.visitVarInsn(Opcodes.ALOAD, 4);
  			final Label l14 = new Label();
  			m.visitJumpInsn(Opcodes.IFNULL, l14);
  			m.visitVarInsn(Opcodes.ALOAD, 4);
  			m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "Fun2$Resource", "close",
  					"()V", false);
  			m.visitLabel(l14);
  			m.visitVarInsn(Opcodes.ALOAD, 1);
  			m.visitInsn(Opcodes.ATHROW);
  		}
  		m.visitLabel(l7);
  		{ // nextIsEcjClose("r2")
  			m.visitVarInsn(Opcodes.ALOAD, 3);
  			m.visitJumpInsn(Opcodes.IFNULL, end);
  			m.visitVarInsn(Opcodes.ALOAD, 3);
  			m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "Fun2$Resource", "close",
  					"()V", false);
  			m.visitJumpInsn(Opcodes.GOTO, end);
  		}
  		{ // nextIsEcjSuppress
  			m.visitVarInsn(Opcodes.ASTORE, 2);
  			m.visitVarInsn(Opcodes.ALOAD, 1);
  			final Label suppressStart = new Label();
  			m.visitJumpInsn(Opcodes.IFNONNULL, suppressStart);
  			m.visitVarInsn(Opcodes.ALOAD, 2);
  			m.visitVarInsn(Opcodes.ASTORE, 1);
  			final Label suppressEnd = new Label();
  			m.visitJumpInsn(Opcodes.GOTO, suppressEnd);
  			m.visitLabel(suppressStart);
  			m.visitVarInsn(Opcodes.ALOAD, 1);
  			m.visitVarInsn(Opcodes.ALOAD, 2);
  			m.visitJumpInsn(Opcodes.IF_ACMPEQ, suppressEnd);
  			m.visitVarInsn(Opcodes.ALOAD, 1);
  			m.visitVarInsn(Opcodes.ALOAD, 2);
  			m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Throwable",
  					"addSuppressed", "(Ljava/lang/Throwable;)V", false);
  			m.visitLabel(suppressEnd);
  		}
  		{ // nextIsEcjCloseAndThrow("r2")
  			m.visitVarInsn(Opcodes.ALOAD, 3);
  			final Label l18 = new Label();
  			m.visitJumpInsn(Opcodes.IFNULL, l18);
  			m.visitVarInsn(Opcodes.ALOAD, 3);
  			m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "Fun2$Resource", "close",
  					"()V", false);
  			m.visitLabel(l18);
  			m.visitVarInsn(Opcodes.ALOAD, 1);
  			m.visitInsn(Opcodes.ATHROW);
  		}
  		{ // nextIsEcjSuppress
  			m.visitVarInsn(Opcodes.ASTORE, 2);
  			m.visitVarInsn(Opcodes.ALOAD, 1);
  			final Label suppressStart = new Label();
  			m.visitJumpInsn(Opcodes.IFNONNULL, suppressStart);
  			m.visitVarInsn(Opcodes.ALOAD, 2);
  			m.visitVarInsn(Opcodes.ASTORE, 1);
  			final Label suppressEnd = new Label();
  			m.visitJumpInsn(Opcodes.GOTO, suppressEnd);
  			m.visitLabel(suppressStart);
  			m.visitVarInsn(Opcodes.ALOAD, 1);
  			m.visitVarInsn(Opcodes.ALOAD, 2);
  			m.visitJumpInsn(Opcodes.IF_ACMPEQ, suppressEnd);
  			m.visitVarInsn(Opcodes.ALOAD, 1);
  			m.visitVarInsn(Opcodes.ALOAD, 2);
  			m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Throwable",
  					"addSuppressed", "(Ljava/lang/Throwable;)V", false);
  			m.visitLabel(suppressEnd);
  		}
  		// throw primaryExc
  		m.visitVarInsn(Opcodes.ALOAD, 1);
  		m.visitInsn(Opcodes.ATHROW);
  		range1.toInclusive = m.instructions.getLast();
  
  		// additional handlers
  		m.visitInsn(Opcodes.NOP);
  
  		filter.filter(m, context, output);
  
  		assertIgnored(range0, range1);
  	}
  
  	/**
  	 * ECJ for
  	 * 
  	 * <pre>
  	 *     try (r1 = ...; r2 = ...; r3 = ...) {
  	 *         return ...
  	 *     } finally {
  	 *         ...
  	 *     }
  	 * </pre>
  	 *
  	 * generates
  	 *
  	 * <pre>
  	 *     ACONST_NULL
  	 *     astore primaryExc
  	 *     ACONST_NULL
  	 *     astore suppressedExc
  	 *
  	 *     ...
  	 *     ASTORE r1
  	 *     ...
  	 *     ASTORE r2
  	 *     ...
  	 *     ASTORE r3
  	 *
  	 *     ... // body
  	 *
  	 *     ALOAD r3
  	 *     IFNULL n
  	 *     ALOAD r3
  	 *     INVOKEVIRTUAL close:()V
  	 *     n:
  	 *     ALOAD r2
  	 *     IFNULL n
  	 *     ALOAD r2
  	 *     INVOKEVIRTUAL close:()V
  	 *     n:
  	 *     ALOAD r1
  	 *     IFNULL n
  	 *     ALOAD r1
  	 *     INVOKEVIRTUAL close:()V
  	 *     n:
  	 *
  	 *     ... // finally on normal path
  	 *     ARETURN
  	 *
  	 *     ASTORE primaryExc
  	 *     ALOAD r3
  	 *     IFNULL n
  	 *     ALOAD r3
  	 *     INVOKEVIRTUAL close:()V
  	 *     n:
  	 *     ALOAD primaryExc
  	 *     ATHROW
  	 *
  	 *     ASTORE suppressedExc
  	 *     ALOAD primaryExc
  	 *     IFNONNULL s
  	 *     ALOAD suppressedExc
  	 *     ASTORE primaryExc
  	 *     GOTO  e
  	 *     s:
  	 *     ALOAD primaryExc
  	 *     ALOAD suppressedExc
  	 *     IF_ACMPEQ  e
  	 *     ALOAD primaryExc
  	 *     ALOAD suppressedExc
  	 *     INVOKEVIRTUAL java/lang/Throwable.addSuppressed:(Ljava/lang/Throwable;)V
  	 *     e:
  	 *
  	 *     ALOAD r2
  	 *     IFNULL n
  	 *     ALOAD r2
  	 *     INVOKEVIRTUAL close:()V
  	 *     n:
  	 *     ALOAD primaryExc
  	 *     ATHROW
  	 *
  	 *     ASTORE suppressedExc
  	 *     ALOAD primaryExc
  	 *     IFNONNULL s
  	 *     ALOAD suppressedExc
  	 *     ASTORE primaryExc
  	 *     GOTO e
  	 *     s:
  	 *     ALOAD primaryExc
  	 *     ALOAD suppressedExc
  	 *     IF_ACMPEQ e
  	 *     ALOAD primaryExc
  	 *     ALOAD suppressedExc
  	 *     INVOKEVIRTUAL java/lang/Throwable.addSuppressed:(Ljava/lang/Throwable;)V
  	 *     e:
  	 *
  	 *     ALOAD r1
  	 *     IFNULL n
  	 *     ALOAD r1
  	 *     INVOKEVIRTUAL close:()V
  	 *     n:
  	 *     ALOAD primaryExc
  	 *     ATHROW
  	 *
  	 *     ASTORE suppressedExc
  	 *     ALOAD primaryExc
  	 *     IFNONNULL s
  	 *     ALOAD suppressedExc
  	 *     ASTORE primaryExc
  	 *     GOTO e
  	 *     s:
  	 *     ALOAD primaryExc
  	 *     ALOAD suppressedExc
  	 *     IF_ACMPEQ e
  	 *     ALOAD primaryExc
  	 *     ALOAD suppressedExc
  	 *     INVOKEVIRTUAL java/lang/Throwable.addSuppressed:(Ljava/lang/Throwable;)V
  	 *     e:
  	 *
  	 *     ALOAD primaryExc
  	 *     ATHROW
  	 *
  	 *     ... // additional handlers for catch blocks and finally on exceptional path
  	 * </pre>
  	 */
  	@Test
  	public void ecj_noFlowOut() {
  		final Range range0 = new Range();
  		final Range range1 = new Range();
  
  		final Label handler = new Label();
  		m.visitTryCatchBlock(handler, handler, handler, null);
  
  		// primaryExc = null
  		m.visitInsn(Opcodes.ACONST_NULL);
  		m.visitVarInsn(Opcodes.ASTORE, 1);
  		// suppressedExc = null
  		m.visitInsn(Opcodes.ACONST_NULL);
  		m.visitVarInsn(Opcodes.ASTORE, 2);
  
  		// body
  		m.visitInsn(Opcodes.NOP);
  
  		{ // nextIsEcjClose("r0")
  			final Label label = new Label();
  			m.visitVarInsn(Opcodes.ALOAD, 5);
  			range0.fromInclusive = m.instructions.getLast();
  			m.visitJumpInsn(Opcodes.IFNULL, label);
  			m.visitVarInsn(Opcodes.ALOAD, 5);
  			m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "Fun$Resource", "close",
  					"()V", false);
  			m.visitLabel(label);
  		}
  		{ // nextIsEcjClose("r1")
  			final Label label = new Label();
  			m.visitVarInsn(Opcodes.ALOAD, 4);
  			m.visitJumpInsn(Opcodes.IFNULL, label);
  			m.visitVarInsn(Opcodes.ALOAD, 4);
  			m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "Fun$Resource", "close",
  					"()V", false);
  			m.visitLabel(label);
  		}
  		{ // nextIsEcjClose("r2")
  			final Label label = new Label();
  			m.visitVarInsn(Opcodes.ALOAD, 3);
  			m.visitJumpInsn(Opcodes.IFNULL, label);
  			m.visitVarInsn(Opcodes.ALOAD, 3);
  			m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "Fun$Resource", "close",
  					"()V", false);
  			range0.toInclusive = m.instructions.getLast();
  			m.visitLabel(label);
  		}
  
  		// finally
  		m.visitInsn(Opcodes.NOP);
  		m.visitInsn(Opcodes.ARETURN);
  
  		// catch (any primaryExc)
  		m.visitLabel(handler);
  		range1.fromInclusive = m.instructions.getLast();
  		m.visitVarInsn(Opcodes.ASTORE, 1);
  		{ // nextIsEcjCloseAndThrow("r0")
  			m.visitVarInsn(Opcodes.ALOAD, 5);
  			final Label throwLabel = new Label();
  			m.visitJumpInsn(Opcodes.IFNULL, throwLabel);
  			m.visitVarInsn(Opcodes.ALOAD, 5);
  			m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "Fun$Resource", "close",
  					"()V", false);
  			m.visitLabel(throwLabel);
  			m.visitVarInsn(Opcodes.ALOAD, 1);
  			m.visitInsn(Opcodes.ATHROW);
  		}
  		{ // nextIsEcjSuppress
  			m.visitVarInsn(Opcodes.ASTORE, 2);
  			m.visitVarInsn(Opcodes.ALOAD, 1);
  			final Label suppressStart = new Label();
  			m.visitJumpInsn(Opcodes.IFNONNULL, suppressStart);
  			m.visitVarInsn(Opcodes.ALOAD, 2);
  			m.visitVarInsn(Opcodes.ASTORE, 1);
  			final Label suppressEnd = new Label();
  			m.visitJumpInsn(Opcodes.GOTO, suppressEnd);
  			m.visitLabel(suppressStart);
  			m.visitVarInsn(Opcodes.ALOAD, 1);
  			m.visitVarInsn(Opcodes.ALOAD, 2);
  			m.visitJumpInsn(Opcodes.IF_ACMPEQ, suppressEnd);
  			m.visitVarInsn(Opcodes.ALOAD, 1);
  			m.visitVarInsn(Opcodes.ALOAD, 2);
  			m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Throwable",
  					"addSuppressed", "(Ljava/lang/Throwable;)V", false);
  			m.visitLabel(suppressEnd);
  		}
  		{ // nextIsEcjCloseAndThrow("r1")
  			m.visitVarInsn(Opcodes.ALOAD, 4);
  			final Label throwLabel = new Label();
  			m.visitJumpInsn(Opcodes.IFNULL, throwLabel);
  			m.visitVarInsn(Opcodes.ALOAD, 4);
  			m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "Fun$Resource", "close",
  					"()V", false);
  			m.visitLabel(throwLabel);
  			m.visitVarInsn(Opcodes.ALOAD, 1);
  			m.visitInsn(Opcodes.ATHROW);
  		}
  		{ // nextIsEcjSuppress
  			m.visitVarInsn(Opcodes.ASTORE, 2);
  			m.visitVarInsn(Opcodes.ALOAD, 1);
  			final Label suppressStart = new Label();
  			m.visitJumpInsn(Opcodes.IFNONNULL, suppressStart);
  			m.visitVarInsn(Opcodes.ALOAD, 2);
  			m.visitVarInsn(Opcodes.ASTORE, 1);
  			final Label suppressEnd = new Label();
  			m.visitJumpInsn(Opcodes.GOTO, suppressEnd);
  			m.visitLabel(suppressStart);
  			m.visitVarInsn(Opcodes.ALOAD, 1);
  			m.visitVarInsn(Opcodes.ALOAD, 2);
  			m.visitJumpInsn(Opcodes.IF_ACMPEQ, suppressEnd);
  			m.visitVarInsn(Opcodes.ALOAD, 1);
  			m.visitVarInsn(Opcodes.ALOAD, 2);
  			m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Throwable",
  					"addSuppressed", "(Ljava/lang/Throwable;)V", false);
  			m.visitLabel(suppressEnd);
  		}
  		{ // nextIsEcjCloseAndThrow("r2")
  			m.visitVarInsn(Opcodes.ALOAD, 3);
  			final Label throwLabel = new Label();
  			m.visitJumpInsn(Opcodes.IFNULL, throwLabel);
  			m.visitVarInsn(Opcodes.ALOAD, 3);
  			m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "Fun$Resource", "close",
  					"()V", false);
  			m.visitLabel(throwLabel);
  			m.visitVarInsn(Opcodes.ALOAD, 1);
  			m.visitInsn(Opcodes.ATHROW);
  		}
  		{ // nextIsEcjSuppress
  			m.visitVarInsn(Opcodes.ASTORE, 2);
  			m.visitVarInsn(Opcodes.ALOAD, 1);
  			final Label suppressStart = new Label();
  			m.visitJumpInsn(Opcodes.IFNONNULL, suppressStart);
  			m.visitVarInsn(Opcodes.ALOAD, 2);
  			m.visitVarInsn(Opcodes.ASTORE, 1);
  			final Label suppressEnd = new Label();
  			m.visitJumpInsn(Opcodes.GOTO, suppressEnd);
  			m.visitLabel(suppressStart);
  			m.visitVarInsn(Opcodes.ALOAD, 1);
  			m.visitVarInsn(Opcodes.ALOAD, 2);
  			m.visitJumpInsn(Opcodes.IF_ACMPEQ, suppressEnd);
  			m.visitVarInsn(Opcodes.ALOAD, 1);
  			m.visitVarInsn(Opcodes.ALOAD, 2);
  			m.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/Throwable",
  					"addSuppressed", "(Ljava/lang/Throwable;)V", false);
  			m.visitLabel(suppressEnd);
  		}
  		// throw primaryExc
  		m.visitVarInsn(Opcodes.ALOAD, 1);
  		m.visitInsn(Opcodes.ATHROW);
  		range1.toInclusive = m.instructions.getLast();
  
  		// additional handlers
  		m.visitInsn(Opcodes.NOP);
  
  		filter.filter(m, context, output);
  
  		assertIgnored(range0, range1);
  	}
  
  }
  