diff --git a/_ext/eclipse-cdt/CHANGES.md b/_ext/eclipse-cdt/CHANGES.md
index b4fbd087c5..41d28a984b 100644
--- a/_ext/eclipse-cdt/CHANGES.md
+++ b/_ext/eclipse-cdt/CHANGES.md
@@ -1,5 +1,9 @@
 # spotless-eclipse-cdt
 
+### Version 9.8.0 - July 24th 2019 ([artifact]([jcenter](https://bintray.com/diffplug/opensource/spotless-eclipse-cdt)))
+
+* Switch to Eclipse CDT release 9.8 for Eclipse 4.12 ([#423](https://github.com/diffplug/spotless/pull/423)).
+
 ### Version 9.7.0 - March 31st 2019 ([artifact]([jcenter](https://bintray.com/diffplug/opensource/spotless-eclipse-cdt)))
 
 * Switch to Eclipse CTD release 9.7 for Eclipse 4.11 ([#389](https://github.com/diffplug/spotless/pull/389)).
diff --git a/_ext/eclipse-cdt/gradle.properties b/_ext/eclipse-cdt/gradle.properties
index bcb94a7f2e..168e8037f0 100644
--- a/_ext/eclipse-cdt/gradle.properties
+++ b/_ext/eclipse-cdt/gradle.properties
@@ -1,7 +1,7 @@
 # Versions correspond to the Eclipse-CDT version used for the fat-JAR.
 # See https://www.eclipse.org/cdt/ for further information about Eclipse-CDT versions.
 # Patch version can be incremented independently for backward compatible patches of this library. 
-ext_version=9.7.0
+ext_version=9.8.0
 ext_artifactId=spotless-eclipse-cdt
 ext_description=Eclipse's CDT C/C++ formatter bundled for Spotless
 ext_org=diffplug
@@ -12,7 +12,7 @@ ext_VER_JAVA=1.8
 
 # Compile dependencies
 VER_ECLIPSE_CDT=9.7
-VER_SPOTLESS_ECLISPE_BASE=[3.1.0,4.0.0[
+VER_SPOTLESS_ECLISPE_BASE=[3.2.0,4.0.0[
 VER_ECLISPE_JFACE=[3.12.0,4.0.0[
 VER_ECLISPE_WORKBENCH=[3.11.0,4.0.0[
 VER_ECLISPE_PLATFORM=[3.6.0,4.0.0[
diff --git a/_ext/eclipse-cdt/src/test/java/com/diffplug/spotless/extra/eclipse/cdt/EclipseCdtFormatterStepImplTest.java b/_ext/eclipse-cdt/src/test/java/com/diffplug/spotless/extra/eclipse/cdt/EclipseCdtFormatterStepImplTest.java
index 96d1f8d722..bf411edac1 100644
--- a/_ext/eclipse-cdt/src/test/java/com/diffplug/spotless/extra/eclipse/cdt/EclipseCdtFormatterStepImplTest.java
+++ b/_ext/eclipse-cdt/src/test/java/com/diffplug/spotless/extra/eclipse/cdt/EclipseCdtFormatterStepImplTest.java
@@ -46,7 +46,7 @@ public class EclipseCdtFormatterStepImplTest {
 	private final static String ILLEGAL_CHAR = Character.toString((char) 254);
 
 	private final static String FUNCT_PTR_UNFORMATTED = "void  (*getFunc(void))  (int);";
-	private final static String FUNCT_PTR_FORMATTED = "void (*getFunc(void)) (int);";
+	private final static String FUNCT_PTR_FORMATTED = "void (* getFunc(void)) (int);";
 
 	@Test
 	public void defaultFormat() throws Throwable {
diff --git a/_ext/eclipse-groovy/CHANGES.md b/_ext/eclipse-groovy/CHANGES.md
index 87ba1028e3..f75e1a3153 100644
--- a/_ext/eclipse-groovy/CHANGES.md
+++ b/_ext/eclipse-groovy/CHANGES.md
@@ -1,5 +1,9 @@
 # spotless-eclipse-groovy
 
+### Version 3.4.0 - July 24th 2019 ([artifact]([jcenter](https://bintray.com/diffplug/opensource/spotless-eclipse-groovy)))
+
+* Switch to Groovy-Eclipse release 3.4.0 for Eclipse 4.12 using Groovy-Indy 3.0.0  ([#423](https://github.com/diffplug/spotless/pull/423)).
+
 ### Version 3.2.0 - March 16th 2019 ([artifact]([jcenter](https://bintray.com/diffplug/opensource/spotless-eclipse-groovy)))
 
 * Switch to Groovy-Eclipse release 3.2.0 for Eclipse 4.10 ([#375](https://github.com/diffplug/spotless/pull/375)).
diff --git a/_ext/eclipse-groovy/gradle.properties b/_ext/eclipse-groovy/gradle.properties
index 69660c92f7..0c2867e315 100644
--- a/_ext/eclipse-groovy/gradle.properties
+++ b/_ext/eclipse-groovy/gradle.properties
@@ -1,7 +1,7 @@
 # Versions correspond to the Groovy-Eclipse version used for the fat-JAR.
 # See https://github.com/groovy/groovy-eclipse/releases for further information about Groovy-Eclipse versions.
 # Patch version can be incremented independently for backward compatible patches of this library. 
-ext_version=3.2.0
+ext_version=3.4.0
 ext_artifactId=spotless-eclipse-groovy
 ext_description=Groovy Eclipse's formatter bundled for Spotless
 
@@ -12,11 +12,11 @@ ext_group=com.diffplug.spotless
 ext_VER_JAVA=1.8
 
 # Compile
-VER_ECLIPSE=4.10
-VER_SPOTLESS_ECLISPE_BASE=[3.1.0,4.0.0[
+VER_ECLIPSE=4.12
+VER_SPOTLESS_ECLISPE_BASE=[3.2.0,4.0.0[
 VER_ECLISPE_JFACE=[3.12.0,4.0.0[
-VER_GRECLIPSE=3.2.0
-VER_GROOVY=2.6.0
+VER_GRECLIPSE=3.4.0
+VER_GROOVY=3.0.0
 
 # Provided dependencies
 VER_SLF4J=[1.6,2.0[
\ No newline at end of file
diff --git a/_ext/eclipse-groovy/src/test/java/com/diffplug/spotless/extra/eclipse/groovy/GrEclipseFormatterStepImplTest.java b/_ext/eclipse-groovy/src/test/java/com/diffplug/spotless/extra/eclipse/groovy/GrEclipseFormatterStepImplTest.java
index 3754cde223..b3defa5634 100644
--- a/_ext/eclipse-groovy/src/test/java/com/diffplug/spotless/extra/eclipse/groovy/GrEclipseFormatterStepImplTest.java
+++ b/_ext/eclipse-groovy/src/test/java/com/diffplug/spotless/extra/eclipse/groovy/GrEclipseFormatterStepImplTest.java
@@ -31,7 +31,8 @@ public class GrEclipseFormatterStepImplTest {
 	private final static TestData TEST_DATA = TestData.getTestDataOnFileSystem();
 	private final static String PARSER_EXCEPTION = "class Test { void method() {} ";
 	private final static String SCANNER_EXCEPTION = "{";
-	private final static String BOUNDED_WILDCARDS = "foo(Map<String, ? extends  Object> e)\n{\ne.clear();\n}";
+	private final static String BOUNDED_WILDCARDS_UNFORMATTED = "foo(Map<String, ? extends  Object> e)\n{\ne.clear();\n}";
+	private final static String BOUNDED_WILDCARDS_FORMATTED = "foo(Map<String, ? extends  Object> e) {\n\te.clear();\n}";
 
 	@Test
 	public void defaultFormat() throws Throwable {
@@ -45,7 +46,7 @@ public void validConfiguration() throws Throwable {
 		String output = format(TEST_DATA.input("nominal.test"), config -> {
 			config.put(GROOVY_FORMATTER_REMOVE_UNNECESSARY_SEMICOLONS, "true");
 		});
-		assertEquals("Unexpected formatting fro custom configuration.",
+		assertEquals("Unexpected formatting for custom configuration.",
 				TEST_DATA.expected("nominal.test").replace(";", ""), output);
 	}
 
@@ -74,12 +75,13 @@ public void scannerException() throws Throwable {
 	/**
 	 * Test the handling bounded wildcards templates
 	 * No exception since Groovy-Eclipse 3.0.0.
+	 * Formatting fixed with Groovy-Eclipse 3.14 (org.codehaus.groovy:groovy[3.+]).
 	 */
 	@Test
 	public void boundedWildCards() throws Throwable {
-		String output = format(BOUNDED_WILDCARDS, config -> {});
-		assertEquals("Groovy formatter does  notformat after bounded wildcards correctly.",
-				BOUNDED_WILDCARDS.replace("\n", " "), output);
+		String output = format(BOUNDED_WILDCARDS_UNFORMATTED, config -> {});
+		assertEquals("Unexpected formatting after bounded wildcards.",
+				BOUNDED_WILDCARDS_FORMATTED, output);
 	}
 
 	@Test
@@ -89,7 +91,6 @@ public void ignoreCompilerProblems() throws Throwable {
 		};
 		format(PARSER_EXCEPTION, ignoreCompilerProblems);
 		format(SCANNER_EXCEPTION, ignoreCompilerProblems);
-		format(BOUNDED_WILDCARDS, ignoreCompilerProblems);
 		//Test is passed if it does not throw an exception. See issue 237.
 	}
 
diff --git a/_ext/eclipse-jdt/gradle.properties b/_ext/eclipse-jdt/gradle.properties
index 3b035ebd6b..48116f43ec 100644
--- a/_ext/eclipse-jdt/gradle.properties
+++ b/_ext/eclipse-jdt/gradle.properties
@@ -1,6 +1,6 @@
 # Mayor/Minor versions correspond to the minimum Eclipse version supported/tested.
 # Patch version is incremented for backward compatible patches of this library.
-ext_version=4.8.0
+ext_version=4.12.0
 ext_artifactId=spotless-eclipse-jdt
 ext_description=Eclipse's JDT formatter bundled for Spotless
 
@@ -12,4 +12,4 @@ ext_VER_JAVA=1.8
 
 # Compile
 VER_ECLIPSE_JDT_CORE=[3.12.0,4.0.0[
-VER_SPOTLESS_ECLISPE_BASE=[3.0.0,4.0.0[
+VER_SPOTLESS_ECLISPE_BASE=[3.2.0,4.0.0[
diff --git a/_ext/eclipse-jdt/src/test/java/com/diffplug/spotless/extra/eclipse/java/EclipseJdtFormatterStepImplTest.java b/_ext/eclipse-jdt/src/test/java/com/diffplug/spotless/extra/eclipse/java/EclipseJdtFormatterStepImplTest.java
index d7105539a7..e45d9a0013 100644
--- a/_ext/eclipse-jdt/src/test/java/com/diffplug/spotless/extra/eclipse/java/EclipseJdtFormatterStepImplTest.java
+++ b/_ext/eclipse-jdt/src/test/java/com/diffplug/spotless/extra/eclipse/java/EclipseJdtFormatterStepImplTest.java
@@ -53,10 +53,17 @@ public void defaultFormat() throws Throwable {
 				FORMATTED, output);
 	}
 
-	@Test
+	/**
+	 * The exception handling has changed sine about JDT 4.10.
+	 * Before that version, JDT caught very internal parser error.
+	 * The latest behavior is in line with Eclipse-Groovy.
+	 * CDT however (still) catches parser exceptions in the formatter step.
+	 * Spotless anyhow provides possibilities to change exception behavior.
+	 * Furthermore it is assumed that Spotless runs on compile-able code.
+	 */
+	@Test(expected = IndexOutOfBoundsException.class)
 	public void invalidFormat() throws Throwable {
-		String output = format(FORMATTED.replace("void hello() {", "void hello()  "), config -> {});
-		assertTrue("Incomplete Java not formatted on best effort basis.", output.contains("void hello()  " + LINE_DELIMITER));
+		format(FORMATTED.replace("void hello() {", "void hello()  "), config -> {});
 	}
 
 	@Test
diff --git a/_ext/eclipse-wtp/CHANGES.md b/_ext/eclipse-wtp/CHANGES.md
index e7976aea96..0e612c817f 100644
--- a/_ext/eclipse-wtp/CHANGES.md
+++ b/_ext/eclipse-wtp/CHANGES.md
@@ -1,5 +1,9 @@
 # spotless-eclipse-wtp
 
+### Version 3.14.0 - July 24th 2019 ([artifact]([jcenter](https://bintray.com/diffplug/opensource/spotless-eclipse-wtp)))
+
+* Switch to Eclipse WTP release 3.14.0 for Eclipse 4.12 ([#423](https://github.com/diffplug/spotless/pull/423)).
+
 ### Version 3.10.0 - March 17th 2019 ([artifact]([jcenter](https://bintray.com/diffplug/opensource/spotless-eclipse-wtp)))
 
 * Switch to Eclipse WTP release 3.10.0 for Eclipse 4.8 ([#378](https://github.com/diffplug/spotless/pull/378)).
diff --git a/_ext/eclipse-wtp/gradle.properties b/_ext/eclipse-wtp/gradle.properties
index 6857f74b3f..a5f52ed9ea 100644
--- a/_ext/eclipse-wtp/gradle.properties
+++ b/_ext/eclipse-wtp/gradle.properties
@@ -1,7 +1,7 @@
 # Versions correspond to the Eclipse-WTP version used for the fat-JAR.
 # See https://www.eclipse.org/webtools/ for further information about Eclipse-WTP versions.
 # Patch version can be incremented independently for backward compatible patches of this library. 
-ext_version=3.10.0
+ext_version=3.14.0
 ext_artifactId=spotless-eclipse-wtp
 ext_description=Eclipse's WTP formatters bundled for Spotless
 
@@ -12,8 +12,8 @@ ext_group=com.diffplug.spotless
 ext_VER_JAVA=1.8
 
 # Compile
-VER_ECLIPSE_WTP=photon
-VER_SPOTLESS_ECLISPE_BASE=[3.1.0,4.0.0[
+VER_ECLIPSE_WTP=2019-06
+VER_SPOTLESS_ECLISPE_BASE=[3.2.0,4.0.0[
 VER_IBM_ICU=[61,62[
 VER_ECLISPE_EMF=[2.12.0,3.0.0[
 VER_ECLISPE_PLATFORM=[3.6.0,4.0.0[
diff --git a/build.gradle b/build.gradle
index 003643ca55..355e5e94cd 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,5 +1,9 @@
 buildscript {
-	repositories { maven { url 'https://plugins.gradle.org/m2/' } }
+	repositories {
+		maven {
+			url 'https://plugins.gradle.org/m2/'
+		}
+	}
 	dependencies {
 		classpath "com.diffplug.gradle:goomph:${VER_GOOMPH}"
 		classpath "com.jfrog.bintray.gradle:gradle-bintray-plugin:${VER_BINTRAY}"
diff --git a/gradle/build-scans.gradle b/gradle/build-scans.gradle
index 607de411d3..b134b6f142 100644
--- a/gradle/build-scans.gradle
+++ b/gradle/build-scans.gradle
@@ -9,7 +9,8 @@ buildScan {
 	if (hasAccepted) {
 		termsOfServiceAgree = 'yes'
 	} else if (!hasRefused) {
-		gradle.buildFinished { println """
+		gradle.buildFinished {
+			println """
 This build uses Gradle Build Scans to gather statistics, share information about 
 failures, environmental issues, dependencies resolved during the build and more.
 Build scans will be published after each build, if you accept the terms of 
@@ -33,6 +34,7 @@ and then:
 
 And we'll not bother you again. Note that build scans are only made public if 
 you share the URL at the end of the build.
-""" }
+"""
+		}
 	}
 }
diff --git a/gradle/java-setup.gradle b/gradle/java-setup.gradle
index 3a42f18714..31c729168b 100644
--- a/gradle/java-setup.gradle
+++ b/gradle/java-setup.gradle
@@ -1,5 +1,9 @@
 buildscript {
-	repositories { maven { url 'https://plugins.gradle.org/m2/' } }
+	repositories {
+		maven {
+			url 'https://plugins.gradle.org/m2/'
+		}
+	}
 	dependencies { classpath "gradle.plugin.com.github.spotbugs:spotbugs-gradle-plugin:${VER_SPOTBUGS_PLUGIN}" }
 }
 
diff --git a/lib-extra/src/main/java/com/diffplug/spotless/extra/cpp/EclipseCdtFormatterStep.java b/lib-extra/src/main/java/com/diffplug/spotless/extra/cpp/EclipseCdtFormatterStep.java
index 1771f4c46f..a718ddea3a 100644
--- a/lib-extra/src/main/java/com/diffplug/spotless/extra/cpp/EclipseCdtFormatterStep.java
+++ b/lib-extra/src/main/java/com/diffplug/spotless/extra/cpp/EclipseCdtFormatterStep.java
@@ -30,7 +30,7 @@ private EclipseCdtFormatterStep() {}
 
 	private static final String NAME = "eclipse cdt formatter";
 	private static final String FORMATTER_CLASS = "com.diffplug.spotless.extra.eclipse.cdt.EclipseCdtFormatterStepImpl";
-	private static final String DEFAULT_VERSION = "4.11.0";
+	private static final String DEFAULT_VERSION = "4.12.0";
 	private static final String FORMATTER_METHOD = "format";
 
 	public static String defaultVersion() {
diff --git a/lib-extra/src/main/java/com/diffplug/spotless/extra/groovy/GrEclipseFormatterStep.java b/lib-extra/src/main/java/com/diffplug/spotless/extra/groovy/GrEclipseFormatterStep.java
index df2e9458b9..610393c121 100644
--- a/lib-extra/src/main/java/com/diffplug/spotless/extra/groovy/GrEclipseFormatterStep.java
+++ b/lib-extra/src/main/java/com/diffplug/spotless/extra/groovy/GrEclipseFormatterStep.java
@@ -35,7 +35,7 @@ private GrEclipseFormatterStep() {}
 	private static final String FORMATTER_CLASS = "com.diffplug.spotless.extra.eclipse.groovy.GrEclipseFormatterStepImpl";
 	private static final String FORMATTER_CLASS_OLD = "com.diffplug.gradle.spotless.groovy.eclipse.GrEclipseFormatterStepImpl";
 	private static final String MAVEN_GROUP_ARTIFACT = "com.diffplug.spotless:spotless-eclipse-groovy";
-	private static final String DEFAULT_VERSION = "4.10.0";
+	private static final String DEFAULT_VERSION = "4.12.0";
 	private static final String FORMATTER_METHOD = "format";
 
 	/** Creates a formatter step using the default version for the given settings file. */
diff --git a/lib-extra/src/main/java/com/diffplug/spotless/extra/java/EclipseJdtFormatterStep.java b/lib-extra/src/main/java/com/diffplug/spotless/extra/java/EclipseJdtFormatterStep.java
index 807a952669..1c68221349 100644
--- a/lib-extra/src/main/java/com/diffplug/spotless/extra/java/EclipseJdtFormatterStep.java
+++ b/lib-extra/src/main/java/com/diffplug/spotless/extra/java/EclipseJdtFormatterStep.java
@@ -32,7 +32,7 @@ private EclipseJdtFormatterStep() {}
 	private static final String FORMATTER_CLASS_OLD = "com.diffplug.gradle.spotless.java.eclipse.EclipseFormatterStepImpl";
 	private static final String FORMATTER_CLASS = "com.diffplug.spotless.extra.eclipse.java.EclipseJdtFormatterStepImpl";
 	private static final String MAVEN_GROUP_ARTIFACT = "com.diffplug.spotless:spotless-eclipse-jdt";
-	private static final String DEFAULT_VERSION = "4.11.0";
+	private static final String DEFAULT_VERSION = "4.12.0";
 	private static final String FORMATTER_METHOD = "format";
 
 	public static String defaultVersion() {
diff --git a/lib-extra/src/main/java/com/diffplug/spotless/extra/wtp/EclipseWtpFormatterStep.java b/lib-extra/src/main/java/com/diffplug/spotless/extra/wtp/EclipseWtpFormatterStep.java
index d616c48f86..e9961328ed 100644
--- a/lib-extra/src/main/java/com/diffplug/spotless/extra/wtp/EclipseWtpFormatterStep.java
+++ b/lib-extra/src/main/java/com/diffplug/spotless/extra/wtp/EclipseWtpFormatterStep.java
@@ -37,7 +37,7 @@ public enum EclipseWtpFormatterStep {
 
 	private static final String NAME = "eclipse wtp formatters";
 	private static final String FORMATTER_PACKAGE = "com.diffplug.spotless.extra.eclipse.wtp.";
-	private static final String DEFAULT_VERSION = "4.8.0";
+	private static final String DEFAULT_VERSION = "4.12.0";
 	private static final String FORMATTER_METHOD = "format";
 
 	private final String implementationClassName;
diff --git a/lib-extra/src/main/resources/com/diffplug/spotless/extra/eclipse_cdt_formatter/v4.12.0.lockfile b/lib-extra/src/main/resources/com/diffplug/spotless/extra/eclipse_cdt_formatter/v4.12.0.lockfile
new file mode 100644
index 0000000000..e9c215b58a
--- /dev/null
+++ b/lib-extra/src/main/resources/com/diffplug/spotless/extra/eclipse_cdt_formatter/v4.12.0.lockfile
@@ -0,0 +1,21 @@
+# Spotless formatter based on CDT version 9.8.0 (see https://www.eclipse.org/cdt/)
+com.diffplug.spotless:spotless-eclipse-cdt:9.8.0
+com.diffplug.spotless:spotless-eclipse-base:3.2.0
+com.google.code.findbugs:annotations:3.0.0
+com.google.code.findbugs:jsr305:3.0.0
+com.ibm.icu:icu4j:61.2
+org.eclipse.platform:org.eclipse.core.commands:3.9.400
+org.eclipse.platform:org.eclipse.core.contenttype:3.7.300
+org.eclipse.platform:org.eclipse.core.filebuffers:3.6.600
+org.eclipse.platform:org.eclipse.core.filesystem:1.7.400
+org.eclipse.platform:org.eclipse.core.jobs:3.10.400
+org.eclipse.platform:org.eclipse.core.resources:3.13.400
+org.eclipse.platform:org.eclipse.core.runtime:3.15.300
+org.eclipse.platform:org.eclipse.equinox.app:1.4.200
+org.eclipse.platform:org.eclipse.equinox.common:3.10.400
+org.eclipse.platform:org.eclipse.equinox.preferences:3.7.400
+org.eclipse.platform:org.eclipse.equinox.registry:3.8.400
+org.eclipse.platform:org.eclipse.jface.text:3.15.200
+org.eclipse.platform:org.eclipse.jface:3.16.0
+org.eclipse.platform:org.eclipse.osgi:3.14.0
+org.eclipse.platform:org.eclipse.text:3.8.200
diff --git a/lib-extra/src/main/resources/com/diffplug/spotless/extra/eclipse_jdt_formatter/v4.12.0.lockfile b/lib-extra/src/main/resources/com/diffplug/spotless/extra/eclipse_jdt_formatter/v4.12.0.lockfile
new file mode 100644
index 0000000000..93c67d37a5
--- /dev/null
+++ b/lib-extra/src/main/resources/com/diffplug/spotless/extra/eclipse_jdt_formatter/v4.12.0.lockfile
@@ -0,0 +1,18 @@
+# Spotless formatter based on JDT version 4.12.0 (see https://projects.eclipse.org/projects/eclipse.jdt)
+# Compare tag in M2 pom with https://git.eclipse.org/c/jdt/eclipse.jdt.core.git/tag/?h=R4_12 to determine core version.
+com.diffplug.spotless:spotless-eclipse-jdt:4.8.0
+com.diffplug.spotless:spotless-eclipse-base:3.2.0
+com.google.code.findbugs:annotations:3.0.0
+com.google.code.findbugs:jsr305:3.0.0
+org.eclipse.jdt:org.eclipse.jdt.core:3.18.0
+org.eclipse.platform:org.eclipse.core.commands:3.9.400
+org.eclipse.platform:org.eclipse.core.contenttype:3.7.300
+org.eclipse.platform:org.eclipse.core.jobs:3.10.400
+org.eclipse.platform:org.eclipse.core.resources:3.13.400
+org.eclipse.platform:org.eclipse.core.runtime:3.15.300
+org.eclipse.platform:org.eclipse.equinox.app:1.4.200
+org.eclipse.platform:org.eclipse.equinox.common:3.10.400
+org.eclipse.platform:org.eclipse.equinox.preferences:3.7.400
+org.eclipse.platform:org.eclipse.equinox.registry:3.8.400
+org.eclipse.platform:org.eclipse.osgi:3.14.0
+org.eclipse.platform:org.eclipse.text:3.8.200
diff --git a/lib-extra/src/main/resources/com/diffplug/spotless/extra/eclipse_wtp_formatters/v4.12.0.lockfile b/lib-extra/src/main/resources/com/diffplug/spotless/extra/eclipse_wtp_formatters/v4.12.0.lockfile
new file mode 100644
index 0000000000..f3f0f0043f
--- /dev/null
+++ b/lib-extra/src/main/resources/com/diffplug/spotless/extra/eclipse_wtp_formatters/v4.12.0.lockfile
@@ -0,0 +1,25 @@
+# Spotless formatter based on Eclipse-WTP version 3.14 (see https://www.eclipse.org/webtools/)
+com.diffplug.spotless:spotless-eclipse-wtp:3.14.0
+com.diffplug.spotless:spotless-eclipse-base:3.2.0
+com.google.code.findbugs:annotations:3.0.0
+com.google.code.findbugs:jsr305:3.0.0
+com.ibm.icu:icu4j:61.2
+org.eclipse.emf:org.eclipse.emf.common:2.16.0
+org.eclipse.emf:org.eclipse.emf.ecore:2.18.0
+org.eclipse.platform:org.eclipse.core.commands:3.9.400
+org.eclipse.platform:org.eclipse.core.contenttype:3.7.300
+org.eclipse.platform:org.eclipse.core.filebuffers:3.6.600
+org.eclipse.platform:org.eclipse.core.filesystem:1.7.400
+org.eclipse.platform:org.eclipse.core.jobs:3.10.400
+org.eclipse.platform:org.eclipse.core.resources:3.13.400
+org.eclipse.platform:org.eclipse.core.runtime:3.15.300
+org.eclipse.platform:org.eclipse.equinox.app:1.4.200
+org.eclipse.platform:org.eclipse.equinox.common:3.10.400
+org.eclipse.platform:org.eclipse.equinox.preferences:3.7.400
+org.eclipse.platform:org.eclipse.equinox.registry:3.8.400
+org.eclipse.platform:org.eclipse.jface.text:3.15.200
+org.eclipse.platform:org.eclipse.jface:3.16.0
+org.eclipse.platform:org.eclipse.osgi.services:3.8.0
+org.eclipse.platform:org.eclipse.osgi:3.14.0
+org.eclipse.platform:org.eclipse.text:3.8.200
+org.eclipse.xsd:org.eclipse.xsd:2.12.0
diff --git a/lib-extra/src/main/resources/com/diffplug/spotless/extra/groovy_eclipse_formatter/v4.12.0.lockfile b/lib-extra/src/main/resources/com/diffplug/spotless/extra/groovy_eclipse_formatter/v4.12.0.lockfile
new file mode 100644
index 0000000000..aee84fe946
--- /dev/null
+++ b/lib-extra/src/main/resources/com/diffplug/spotless/extra/groovy_eclipse_formatter/v4.12.0.lockfile
@@ -0,0 +1,18 @@
+# Spotless formatter based on Groovy-Eclipse version 3.4.0 (see https://github.com/groovy/groovy-eclipse/releases)
+com.diffplug.spotless:spotless-eclipse-groovy:3.4.0
+com.diffplug.spotless:spotless-eclipse-base:3.2.0
+com.google.code.findbugs:annotations:3.0.0
+com.google.code.findbugs:jsr305:3.0.0
+org.eclipse.platform:org.eclipse.core.commands:3.9.400
+org.eclipse.platform:org.eclipse.core.contenttype:3.7.300
+org.eclipse.platform:org.eclipse.core.jobs:3.10.400
+org.eclipse.platform:org.eclipse.core.resources:3.13.400
+org.eclipse.platform:org.eclipse.core.runtime:3.15.300
+org.eclipse.platform:org.eclipse.equinox.app:1.4.200
+org.eclipse.platform:org.eclipse.equinox.common:3.10.400
+org.eclipse.platform:org.eclipse.equinox.preferences:3.7.400
+org.eclipse.platform:org.eclipse.equinox.registry:3.8.400
+org.eclipse.platform:org.eclipse.jface.text:3.15.200
+org.eclipse.platform:org.eclipse.jface:3.16.0
+org.eclipse.platform:org.eclipse.osgi:3.14.0
+org.eclipse.platform:org.eclipse.text:3.8.200
diff --git a/lib-extra/src/test/java/com/diffplug/spotless/extra/cpp/EclipseCdtFormatterStepTest.java b/lib-extra/src/test/java/com/diffplug/spotless/extra/cpp/EclipseCdtFormatterStepTest.java
index 8c96752aae..44058bd896 100644
--- a/lib-extra/src/test/java/com/diffplug/spotless/extra/cpp/EclipseCdtFormatterStepTest.java
+++ b/lib-extra/src/test/java/com/diffplug/spotless/extra/cpp/EclipseCdtFormatterStepTest.java
@@ -24,7 +24,7 @@ public class EclipseCdtFormatterStepTest extends EclipseCommonTests {
 
 	@Override
 	protected String[] getSupportedVersions() {
-		return new String[]{"4.7.3a", "4.11.0"};
+		return new String[]{"4.7.3a", "4.11.0", "4.12.0"};
 	}
 
 	@Override
diff --git a/lib-extra/src/test/java/com/diffplug/spotless/extra/groovy/GrEclipseFormatterStepTest.java b/lib-extra/src/test/java/com/diffplug/spotless/extra/groovy/GrEclipseFormatterStepTest.java
index 2bda439d7e..8f5a803cf4 100644
--- a/lib-extra/src/test/java/com/diffplug/spotless/extra/groovy/GrEclipseFormatterStepTest.java
+++ b/lib-extra/src/test/java/com/diffplug/spotless/extra/groovy/GrEclipseFormatterStepTest.java
@@ -23,7 +23,7 @@
 public class GrEclipseFormatterStepTest extends EclipseCommonTests {
 	@Override
 	protected String[] getSupportedVersions() {
-		return new String[]{"2.3.0", "4.6.3", "4.8.0", "4.8.1", "4.10.0"};
+		return new String[]{"2.3.0", "4.6.3", "4.8.0", "4.8.1", "4.10.0", "4.12.0"};
 	}
 
 	@Override
diff --git a/lib-extra/src/test/java/com/diffplug/spotless/extra/java/EclipseJdtFormatterStepTest.java b/lib-extra/src/test/java/com/diffplug/spotless/extra/java/EclipseJdtFormatterStepTest.java
index f840e6f06b..2cb8d38b1d 100644
--- a/lib-extra/src/test/java/com/diffplug/spotless/extra/java/EclipseJdtFormatterStepTest.java
+++ b/lib-extra/src/test/java/com/diffplug/spotless/extra/java/EclipseJdtFormatterStepTest.java
@@ -25,7 +25,7 @@ public class EclipseJdtFormatterStepTest extends EclipseCommonTests {
 	@Override
 	protected String[] getSupportedVersions() {
 		return new String[]{"4.6.1", "4.6.2", "4.6.3", "4.7.0", "4.7.1", "4.7.2", "4.7.3a", "4.8.0", "4.9.0", "4.10.0",
-				"4.11.0"};
+				"4.11.0", "4.12.0"};
 	}
 
 	@Override
diff --git a/lib-extra/src/test/java/com/diffplug/spotless/extra/wtp/EclipseWtpFormatterStepTest.java b/lib-extra/src/test/java/com/diffplug/spotless/extra/wtp/EclipseWtpFormatterStepTest.java
index aac4beb486..de60581d1e 100644
--- a/lib-extra/src/test/java/com/diffplug/spotless/extra/wtp/EclipseWtpFormatterStepTest.java
+++ b/lib-extra/src/test/java/com/diffplug/spotless/extra/wtp/EclipseWtpFormatterStepTest.java
@@ -76,7 +76,7 @@ public static Iterable<WTP> data() {
 
 	@Override
 	protected String[] getSupportedVersions() {
-		return new String[]{"4.7.3a", "4.7.3b", "4.8.0"};
+		return new String[]{"4.7.3a", "4.7.3b", "4.8.0", "4.12.0"};
 	}
 
 	@Override
diff --git a/plugin-gradle/CHANGES.md b/plugin-gradle/CHANGES.md
index d37a38badc..792f376478 100644
--- a/plugin-gradle/CHANGES.md
+++ b/plugin-gradle/CHANGES.md
@@ -2,6 +2,10 @@
 
 ### Version 3.24.0-SNAPSHOT - TBD ([javadoc](https://diffplug.github.io/spotless/javadoc/snapshot/), [snapshot](https://oss.sonatype.org/content/repositories/snapshots/com/diffplug/spotless/spotless-plugin-gradle/))
 
+* Updated default eclipse-wtp from 4.8.0 to 4.12.0 ([#423](https://github.com/diffplug/spotless/pull/423)).
+* Updated default eclipse-groovy from 4.10 to 4.12.0 ([#423](https://github.com/diffplug/spotless/pull/423)).
+* Updated default eclipse-jdt from 4.11.0 to 4.12.0 ([#423](https://github.com/diffplug/spotless/pull/423)).
+* Updated default eclipse-cdt from 4.11.0 to 4.12.0 ([#423](https://github.com/diffplug/spotless/pull/423)).
 * Added new maven coordinates for scalafmt 2.0.0+, maintains backwards compatability ([#415](https://github.com/diffplug/spotless/issues/415))
 
 ### Version 3.23.1 - June 17th 2019 ([javadoc](https://diffplug.github.io/spotless/javadoc/spotless-plugin-gradle/3.23.1/), [jcenter](https://bintray.com/diffplug/opensource/spotless-plugin-gradle/3.23.1))
diff --git a/plugin-maven/CHANGES.md b/plugin-maven/CHANGES.md
index 3892dfff45..7dd486d405 100644
--- a/plugin-maven/CHANGES.md
+++ b/plugin-maven/CHANGES.md
@@ -2,6 +2,10 @@
 
 ### Version 1.24.0-SNAPSHOT - TBD ([javadoc](https://diffplug.github.io/spotless/javadoc/spotless-maven-plugin/snapshot/), [snapshot](https://oss.sonatype.org/content/repositories/snapshots/com/diffplug/spotless/spotless-maven-plugin/))
 
+* Updated default eclipse-wtp from 4.8.0 to 4.12.0 ([#423](https://github.com/diffplug/spotless/pull/423)).
+* Updated default eclipse-groovy from 4.10 to 4.12.0 ([#423](https://github.com/diffplug/spotless/pull/423)).
+* Updated default eclipse-jdt from 4.11.0 to 4.12.0 ([#423](https://github.com/diffplug/spotless/pull/423)).
+* Updated default eclipse-cdt from 4.11.0 to 4.12.0 ([#423](https://github.com/diffplug/spotless/pull/423)).
 * Added new maven coordinates for scalafmt 2.0.0+, maintains backwards compatability ([#415](https://github.com/diffplug/spotless/issues/415))
 
 ### Version 1.23.1 - June 17th 2019 ([javadoc](https://diffplug.github.io/spotless/javadoc/spotless-maven-plugin/1.23.1/), [jcenter](https://bintray.com/diffplug/opensource/spotless-maven-plugin/1.23.1))
diff --git a/plugin-maven/build.gradle b/plugin-maven/build.gradle
index d95d429d43..6141140996 100644
--- a/plugin-maven/build.gradle
+++ b/plugin-maven/build.gradle
@@ -2,7 +2,8 @@ buildscript {
 	repositories { mavenCentral() }
 	dependencies { classpath "com.github.spullara.mustache.java:compiler:${VER_MUSTACHE}" }
 }
-plugins { id 'cz.malohlava' version '1.0.3' // https://github.com/mmalohlava/gradle-visteg
+plugins {
+	id 'cz.malohlava' version '1.0.3' // https://github.com/mmalohlava/gradle-visteg
 }
 
 // to generate taskGraph.pdf
diff --git a/spotlessSelf.gradle b/spotlessSelf.gradle
index b579a6bc01..8746f464bb 100644
--- a/spotlessSelf.gradle
+++ b/spotlessSelf.gradle
@@ -1,4 +1,8 @@
-buildscript { repositories { jcenter() } }
+buildscript {
+	repositories {
+		jcenter()
+	}
+}
 
 // applied by SelfTest
 plugins {