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diff --git a/javatests/src/com/android/loganalysis/parser/JavaCrashParserTest.java b/javatests/src/com/android/loganalysis/parser/JavaCrashParserTest.java
new file mode 100644
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+++ b/javatests/src/com/android/loganalysis/parser/JavaCrashParserTest.java
@@ -0,0 +1,151 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.loganalysis.parser;
+
+import com.android.loganalysis.item.JavaCrashItem;
+import com.android.loganalysis.util.ArrayUtil;
+
+import junit.framework.TestCase;
+
+import java.util.Arrays;
+import java.util.List;
+
+/**
+ * Unit tests for {@link JavaCrashParser}.
+ */
+public class JavaCrashParserTest extends TestCase {
+
+    /**
+     * Test that Java crashes are parsed with no message.
+     */
+    public void testParse_no_message() {
+        List<String> lines = Arrays.asList(
+                "java.lang.Exception",
+                "\tat class.method1(Class.java:1)",
+                "\tat class.method2(Class.java:2)",
+                "\tat class.method3(Class.java:3)");
+
+        JavaCrashItem jc = new JavaCrashParser().parse(lines);
+        assertNotNull(jc);
+        assertEquals("java.lang.Exception", jc.getException());
+        assertNull(jc.getMessage());
+        assertEquals(ArrayUtil.join("\n", lines), jc.getStack());
+    }
+
+    /**
+     * Test that Java crashes are parsed with a message.
+     */
+    public void testParse_message() {
+        List<String> lines = Arrays.asList(
+                "java.lang.Exception: This is the message",
+                "\tat class.method1(Class.java:1)",
+                "\tat class.method2(Class.java:2)",
+                "\tat class.method3(Class.java:3)");
+
+        JavaCrashItem jc = new JavaCrashParser().parse(lines);
+        assertNotNull(jc);
+        assertEquals("java.lang.Exception", jc.getException());
+        assertEquals("This is the message", jc.getMessage());
+        assertEquals(ArrayUtil.join("\n", lines), jc.getStack());
+    }
+
+    /**
+     * Test that Java crashes are parsed if the message spans multiple lines.
+     */
+    public void testParse_multiline_message() {
+        List<String> lines = Arrays.asList(
+                "java.lang.Exception: This message",
+                "is many lines",
+                "long.",
+                "\tat class.method1(Class.java:1)",
+                "\tat class.method2(Class.java:2)",
+                "\tat class.method3(Class.java:3)");
+
+        JavaCrashItem jc = new JavaCrashParser().parse(lines);
+        assertNotNull(jc);
+        assertEquals("java.lang.Exception", jc.getException());
+        assertEquals("This message\nis many lines\nlong.", jc.getMessage());
+        assertEquals(ArrayUtil.join("\n", lines), jc.getStack());
+    }
+
+    /**
+     * Test that caused by sections of Java crashes are parsed, with no message or single or
+     * multiline messages.
+     */
+    public void testParse_caused_by() {
+        List<String> lines = Arrays.asList(
+                "java.lang.Exception: This is the message",
+                "\tat class.method1(Class.java:1)",
+                "\tat class.method2(Class.java:2)",
+                "\tat class.method3(Class.java:3)",
+                "Caused by: java.lang.Exception",
+                "\tat class.method4(Class.java:4)",
+                "Caused by: java.lang.Exception: This is the caused by message",
+                "\tat class.method5(Class.java:5)",
+                "Caused by: java.lang.Exception: This is a multiline",
+                "caused by message",
+                "\tat class.method6(Class.java:6)");
+
+        JavaCrashItem jc = new JavaCrashParser().parse(lines);
+        assertNotNull(jc);
+        assertEquals("java.lang.Exception", jc.getException());
+        assertEquals("This is the message", jc.getMessage());
+        assertEquals(ArrayUtil.join("\n", lines), jc.getStack());
+    }
+
+    /**
+     * Test that the Java crash is cutoff if an unexpected line is handled.
+     */
+    public void testParse_cutoff() {
+        List<String> lines = Arrays.asList(
+                "java.lang.Exception: This is the message",
+                "\tat class.method1(Class.java:1)",
+                "\tat class.method2(Class.java:2)",
+                "\tat class.method3(Class.java:3)",
+                "Invalid line",
+                "java.lang.Exception: This is the message");
+
+        JavaCrashItem jc = new JavaCrashParser().parse(lines);
+        assertNotNull(jc);
+        assertEquals("java.lang.Exception", jc.getException());
+        assertEquals("This is the message", jc.getMessage());
+        assertEquals(ArrayUtil.join("\n", lines.subList(0, lines.size()-2)), jc.getStack());
+    }
+
+    /**
+     * Tests that only parts between the markers are parsed.
+     */
+    public void testParse_begin_end_markers() {
+        List<String> lines = Arrays.asList(
+                "error: this message has begin and end",
+                "----- begin exception -----",
+                "java.lang.Exception: This message",
+                "is many lines",
+                "long.",
+                "\tat class.method1(Class.java:1)",
+                "\tat class.method2(Class.java:2)",
+                "\tat class.method3(Class.java:3)",
+                "----- end exception -----");
+
+        JavaCrashItem jc = new JavaCrashParser().parse(lines);
+        assertNotNull(jc);
+        assertEquals("java.lang.Exception", jc.getException());
+        assertEquals("This message\nis many lines\nlong.", jc.getMessage());
+        assertNotNull(jc.getStack());
+        assertFalse(jc.getStack().contains("begin exception"));
+        assertFalse(jc.getStack().contains("end exception"));
+    }
+}